diff --git a/src/js/msp.js b/src/js/msp.js
index f2219ba6..6eef7f7b 100644
--- a/src/js/msp.js
+++ b/src/js/msp.js
@@ -50,6 +50,10 @@ const MSP = {
     packet_error:               0,
     unsupported:                0,
 
+    MIN_TIMEOUT:                250,
+    MAX_TIMEOUT:                2000,
+    timeout:                    250,
+
     last_received_timestamp:   null,
     listeners:                  [],
 
@@ -318,25 +322,27 @@ const MSP = {
             if (callback_msp) {
                 callback_msp();
             }
-            return;
+            return false;
         }
 
         if (code === undefined || !serial.connectionId) {
-            return;
+            return false;
         }
 
-        let bufferOut;
-        if (code <= 254) {
-            bufferOut = this.encode_message_v1(code, data);
-        } else {
-            bufferOut = this.encode_message_v2(code, data);
-        }
-
-        const obj = {'code': code, 'requestBuffer': bufferOut, 'callback': callback_msp ? callback_msp : false, 'timer': false, 'callbackOnError': doCallbackOnError};
+        const bufferOut = code <= 254 ? this.encode_message_v1(code, data) : this.encode_message_v2(code, data);
+        const obj = {
+            'code': code,
+            'requestBuffer': bufferOut,
+            'callback': callback_msp ? callback_msp : false,
+            'timer': false,
+            'callbackOnError': doCallbackOnError,
+            'start': performance.now(),
+        };
 
         let requestExists = false;
-        for (const value of MSP.callbacks) {
-            if (value.code === code) {
+
+        for (const instance of MSP.callbacks) {
+            if (instance.code === code) {
                 // request already exist, we will just attach
                 requestExists = true;
                 break;
@@ -345,18 +351,26 @@ const MSP = {
 
         if (!requestExists) {
             obj.timer = setInterval(function () {
-                console.warn(`MSP: data request timed-out: ${code} ID: ${serial.connectionId} TAB: ${GUI.active_tab}`);
+                console.warn(`MSP: data request timed-out: ${code} ID: ${serial.connectionId} TAB: ${GUI.active_tab} TIMEOUT: ${MSP.timeout}`);
+                serial.send(bufferOut, function (_sendInfo) {
+                    obj.stop = performance.now();
+                    const executionTime = Math.round(obj.stop - obj.start);
+                    MSP.timeout = Math.max(MSP.MIN_TIMEOUT, Math.min(executionTime, MSP.MAX_TIMEOUT));
+                });
 
-                serial.send(bufferOut, false);
-            }, 1000); // we should be able to define timeout in the future
+            }, MSP.timeout);
         }
 
         MSP.callbacks.push(obj);
 
         // always send messages with data payload (even when there is a message already in the queue)
         if (data || !requestExists) {
+            if (MSP.timeout > MSP.MIN_TIMEOUT) {
+                MSP.timeout--;
+            }
+
             serial.send(bufferOut, function (sendInfo) {
-                if (sendInfo.bytesSent == bufferOut.byteLength) {
+                if (sendInfo.bytesSent === bufferOut.byteLength) {
                     if (callback_sent) {
                         callback_sent();
                     }
@@ -370,17 +384,18 @@ const MSP = {
     /**
      * resolves: {command: code, data: data, length: message_length}
      */
-    promise: function(code, data) {
-      const self = this;
-      return new Promise(function(resolve) {
-        self.send_message(code, data, false, function(_data) {
-          resolve(_data);
+    promise: async function(code, data) {
+        const self = this;
+
+        return new Promise(function(resolve) {
+            self.send_message(code, data, false, function(_data) {
+                resolve(_data);
+            });
         });
-      });
     },
     callbacks_cleanup: function () {
-        for (let index = 0; index < this.callbacks.length; index++) {
-            clearInterval(this.callbacks[index].timer);
+        for (const callback of this.callbacks) {
+            clearInterval(callback.timer);
         }
 
         this.callbacks = [];
diff --git a/src/js/msp/MSPHelper.js b/src/js/msp/MSPHelper.js
index f3707a89..3dfcbb91 100644
--- a/src/js/msp/MSPHelper.js
+++ b/src/js/msp/MSPHelper.js
@@ -147,8 +147,6 @@ MspHelper.prototype.process_data = function(dataHandler) {
                 FC.CONFIG.mode = data.readU32();
                 FC.CONFIG.profile = data.readU8();
 
-                TABS.pid_tuning.checkUpdateProfile(false);
-
                 sensor_status(FC.CONFIG.activeSensors);
                 break;
             case MSPCodes.MSP_STATUS_EX:
@@ -173,8 +171,6 @@ MspHelper.prototype.process_data = function(dataHandler) {
                       FC.CONFIG.armingDisableCount = data.readU8(); // Flag count
                       FC.CONFIG.armingDisableFlags = data.readU32();
                     }
-
-                    TABS.pid_tuning.checkUpdateProfile(true);
                 }
 
                 sensor_status(FC.CONFIG.activeSensors);
@@ -274,10 +270,10 @@ MspHelper.prototype.process_data = function(dataHandler) {
                 FC.ANALOG.mAhdrawn = data.readU16();
                 FC.ANALOG.rssi = data.readU16(); // 0-1023
                 FC.ANALOG.amperage = data.read16() / 100; // A
-                FC.ANALOG.last_received_timestamp = Date.now();
                 if (semver.gte(FC.CONFIG.apiVersion, API_VERSION_1_41)) {
                     FC.ANALOG.voltage = data.readU16() / 100;
                 }
+                FC.ANALOG.last_received_timestamp = Date.now();
                 break;
             case MSPCodes.MSP_VOLTAGE_METERS:
                 FC.VOLTAGE_METERS = [];
@@ -727,7 +723,6 @@ MspHelper.prototype.process_data = function(dataHandler) {
                 }
                 break;
             case MSPCodes.MSP_SET_MOTOR:
-                console.log('Motor Speeds Updated');
                 break;
             case MSPCodes.MSP_UID:
                 FC.CONFIG.uid[0] = data.readU32();
@@ -1728,8 +1723,8 @@ MspHelper.prototype.process_data = function(dataHandler) {
                     if (self.mspMultipleCache.length > 0) {
 
                         const partialBuffer = [];
-                        for (let i = 0; i < self.mspMultipleCache.length; i++) {
-                            partialBuffer.push8(self.mspMultipleCache[i]);
+                        for (const instance of self.mspMultipleCache) {
+                            partialBuffer.push8(instance);
                         }
 
                         MSP.send_message(MSPCodes.MSP_MULTIPLE_MSP, partialBuffer, false, dataHandler.callbacks);
@@ -1746,11 +1741,12 @@ MspHelper.prototype.process_data = function(dataHandler) {
                 console.log(`Unknown code detected: ${code}`);
         } else {
             console.log(`FC reports unsupported message error: ${code}`);
-
-            if (code === MSPCodes.MSP_SET_REBOOT) {
-                TABS.onboard_logging.mscRebootFailedCallback();
-            }
         }
+
+        if (code === MSPCodes.MSP_SET_REBOOT) {
+            TABS.onboard_logging.mscRebootFailedCallback();
+        }
+
     } else {
         console.warn(`code: ${code} - crc failed`);
     }
diff --git a/src/js/serial_backend.js b/src/js/serial_backend.js
index 29639dd1..d7bf44ea 100644
--- a/src/js/serial_backend.js
+++ b/src/js/serial_backend.js
@@ -491,7 +491,7 @@ function connectCli() {
     $('#tabs .tab_cli a').click();
 }
 
-function onConnect() {
+async function onConnect() {
     if ($('div#flashbutton a.flash_state').hasClass('active') && $('div#flashbutton a.flash').hasClass('active')) {
         $('div#flashbutton a.flash_state').removeClass('active');
         $('div#flashbutton a.flash').removeClass('active');
@@ -532,13 +532,12 @@ function onConnect() {
 
         $('#tabs ul.mode-connected').show();
 
-        MSP.send_message(MSPCodes.MSP_FEATURE_CONFIG, false, false);
+        await MSP.promise(MSPCodes.MSP_FEATURE_CONFIG);
         if (semver.gte(FC.CONFIG.apiVersion, API_VERSION_1_33)) {
-            MSP.send_message(MSPCodes.MSP_BATTERY_CONFIG, false, false);
+            await MSP.promise(MSPCodes.MSP_BATTERY_CONFIG);
         }
-        MSP.send_message(MSPCodes.MSP_STATUS_EX, false, false);
-        MSP.send_message(MSPCodes.MSP_DATAFLASH_SUMMARY, false, false);
-
+        await MSP.promise(semver.gte(FC.CONFIG.apiVersion, API_VERSION_1_32) ? MSPCodes.MSP_STATUS_EX : MSPCodes.MSP_STATUS);
+        await MSP.promise(MSPCodes.MSP_DATAFLASH_SUMMARY);
         if (FC.CONFIG.boardType == 0 || FC.CONFIG.boardType == 2) {
             startLiveDataRefreshTimer();
         }
@@ -686,10 +685,10 @@ function have_sensor(sensors_detected, sensor_code) {
 
 function startLiveDataRefreshTimer() {
     // live data refresh
-    GUI.timeout_add('data_refresh', function () { update_live_status(); }, 100);
+    GUI.timeout_add('data_refresh', update_live_status, 100);
 }
 
-function update_live_status() {
+async function update_live_status() {
 
     const statuswrapper = $('#quad-status_wrapper');
 
@@ -698,75 +697,54 @@ function update_live_status() {
     });
 
     if (GUI.active_tab !== 'cli' && GUI.active_tab !== 'presets') {
-        MSP.send_message(MSPCodes.MSP_BOXNAMES, false, false);
-        if (semver.gte(FC.CONFIG.apiVersion, API_VERSION_1_32)) {
-            MSP.send_message(MSPCodes.MSP_STATUS_EX, false, false);
-        } else {
-            MSP.send_message(MSPCodes.MSP_STATUS, false, false);
-        }
-        MSP.send_message(MSPCodes.MSP_ANALOG, false, false);
-    }
+        await MSP.promise(MSPCodes.MSP_BOXNAMES);
+        await MSP.promise(semver.gte(FC.CONFIG.apiVersion, API_VERSION_1_32) ? MSPCodes.MSP_STATUS_EX : MSPCodes.MSP_STATUS);
+        await MSP.promise(MSPCodes.MSP_ANALOG);
 
-    const active = ((Date.now() - FC.ANALOG.last_received_timestamp) < 300);
+        const active = ((Date.now() - FC.ANALOG.last_received_timestamp) < 300);
 
-    for (let i = 0; i < FC.AUX_CONFIG.length; i++) {
-        if (FC.AUX_CONFIG[i] === 'ARM') {
-            if (bit_check(FC.CONFIG.mode, i)) {
-                $(".armedicon").addClass('active');
-            } else {
-                $(".armedicon").removeClass('active');
+        for (let i = 0; i < FC.AUX_CONFIG.length; i++) {
+            if (FC.AUX_CONFIG[i] === 'ARM') {
+                $(".armedicon").toggleClass('active', bit_check(FC.CONFIG.mode, i));
+            }
+            if (FC.AUX_CONFIG[i] === 'FAILSAFE') {
+                $(".failsafeicon").toggleClass('active', bit_check(FC.CONFIG.mode, i));
             }
         }
-        if (FC.AUX_CONFIG[i] === 'FAILSAFE') {
-            if (bit_check(FC.CONFIG.mode, i)) {
-                $(".failsafeicon").addClass('active');
+
+        if (FC.ANALOG != undefined) {
+            let nbCells = Math.floor(FC.ANALOG.voltage / FC.BATTERY_CONFIG.vbatmaxcellvoltage) + 1;
+
+            if (FC.ANALOG.voltage == 0) {
+                    nbCells = 1;
+            }
+
+            const min = FC.BATTERY_CONFIG.vbatmincellvoltage * nbCells;
+            const max = FC.BATTERY_CONFIG.vbatmaxcellvoltage * nbCells;
+            const warn = FC.BATTERY_CONFIG.vbatwarningcellvoltage * nbCells;
+
+            const NO_BATTERY_VOLTAGE_MAXIMUM = 1.8; // Maybe is better to add a call to MSP_BATTERY_STATE but is not available for all versions
+
+            if (FC.ANALOG.voltage < min && FC.ANALOG.voltage > NO_BATTERY_VOLTAGE_MAXIMUM) {
+                $(".battery-status").addClass('state-empty').removeClass('state-ok').removeClass('state-warning');
+                $(".battery-status").css({ width: "100%" });
             } else {
-                $(".failsafeicon").removeClass('active');
+                $(".battery-status").css({ width: `${((FC.ANALOG.voltage - min) / (max - min) * 100)}%` });
+
+                if (FC.ANALOG.voltage < warn) {
+                    $(".battery-status").addClass('state-warning').removeClass('state-empty').removeClass('state-ok');
+                } else  {
+                    $(".battery-status").addClass('state-ok').removeClass('state-warning').removeClass('state-empty');
+                }
             }
         }
+
+        $(".linkicon").toggleClass('active', active);
+
+        statuswrapper.show();
+        GUI.timeout_remove('data_refresh');
+        startLiveDataRefreshTimer();
     }
-
-    if (FC.ANALOG != undefined) {
-        let nbCells = Math.floor(FC.ANALOG.voltage / FC.BATTERY_CONFIG.vbatmaxcellvoltage) + 1;
-
-        if (FC.ANALOG.voltage == 0) {
-               nbCells = 1;
-        }
-
-       const min = FC.BATTERY_CONFIG.vbatmincellvoltage * nbCells;
-       const max = FC.BATTERY_CONFIG.vbatmaxcellvoltage * nbCells;
-       const warn = FC.BATTERY_CONFIG.vbatwarningcellvoltage * nbCells;
-
-       const NO_BATTERY_VOLTAGE_MAXIMUM = 1.8; // Maybe is better to add a call to MSP_BATTERY_STATE but is not available for all versions
-
-       if (FC.ANALOG.voltage < min && FC.ANALOG.voltage > NO_BATTERY_VOLTAGE_MAXIMUM) {
-           $(".battery-status").addClass('state-empty').removeClass('state-ok').removeClass('state-warning');
-           $(".battery-status").css({
-               width: "100%",
-           });
-       } else {
-           $(".battery-status").css({
-               width: `${((FC.ANALOG.voltage - min) / (max - min) * 100)}%`,
-           });
-
-           if (FC.ANALOG.voltage < warn) {
-               $(".battery-status").addClass('state-warning').removeClass('state-empty').removeClass('state-ok');
-           } else  {
-               $(".battery-status").addClass('state-ok').removeClass('state-warning').removeClass('state-empty');
-           }
-       }
-
-    }
-
-    if (active) {
-        $(".linkicon").addClass('active');
-    } else {
-        $(".linkicon").removeClass('active');
-    }
-
-    statuswrapper.show();
-    GUI.timeout_remove('data_refresh');
-    startLiveDataRefreshTimer();
 }
 
 function specificByte(num, pos) {
@@ -846,15 +824,14 @@ function reinitializeConnection(originatorTab, callback) {
     let attempts = 0;
     const reconnect = setInterval(waitforSerial, 100);
 
-    function waitforSerial() {
+    async function waitforSerial() {
         if (connectionTimestamp !== previousTimeStamp && CONFIGURATOR.connectionValid) {
             console.log(`Serial connection available after ${attempts / 10} seconds`);
             clearInterval(reconnect);
-            MSP.promise(MSPCodes.MSP_STATUS).then(() => {
-                GUI.log(i18n.getMessage('deviceReady'));
-                originatorTab.initialize(false, $('#content').scrollTop());
-                callback?.();
-            });
+            await MSP.promise(MSPCodes.MSP_STATUS);
+            GUI.log(i18n.getMessage('deviceReady'));
+            originatorTab.initialize(false, $('#content').scrollTop());
+            callback?.();
         } else {
             attempts++;
             if (attempts > 100) {
diff --git a/src/js/tabs/motors.js b/src/js/tabs/motors.js
index ceab35a8..d21cbaca 100644
--- a/src/js/tabs/motors.js
+++ b/src/js/tabs/motors.js
@@ -585,9 +585,11 @@ TABS.motors.initialize = async function (callback) {
 
         // Amperage
         function power_data_pull() {
-            motorVoltage.text(i18n.getMessage('motorsVoltageValue', [FC.ANALOG.voltage]));
-            motorMahDrawingElement.text(i18n.getMessage('motorsADrawingValue', [FC.ANALOG.amperage.toFixed(2)]));
-            motorMahDrawnElement.text(i18n.getMessage('motorsmAhDrawnValue', [FC.ANALOG.mAhdrawn]));
+            if (FC.ANALOG.last_received_timestamp) {
+                motorVoltage.text(i18n.getMessage('motorsVoltageValue', [FC.ANALOG.voltage]));
+                motorMahDrawingElement.text(i18n.getMessage('motorsADrawingValue', [FC.ANALOG.amperage.toFixed(2)]));
+                motorMahDrawnElement.text(i18n.getMessage('motorsmAhDrawnValue', [FC.ANALOG.mAhdrawn]));
+            }
         }
 
         GUI.interval_add('motors_power_data_pull_slow', power_data_pull, 250, true); // 4 fps
diff --git a/src/js/tabs/pid_tuning.js b/src/js/tabs/pid_tuning.js
index db124771..0d72d225 100644
--- a/src/js/tabs/pid_tuning.js
+++ b/src/js/tabs/pid_tuning.js
@@ -1436,6 +1436,7 @@ TABS.pid_tuning.initialize = function (callback) {
     function process_html() {
         TABS.pid_tuning.isHtmlProcessing = true;
         FC.FEATURE_CONFIG.features.generateElements($('.tab-pid_tuning .features'));
+        self.checkUpdateProfile(false);
 
         if (semver.lt(FC.CONFIG.apiVersion, "1.16.0") || semver.gte(FC.CONFIG.apiVersion, "1.20.0")) {
             $('.tab-pid_tuning .pidTuningSuperexpoRates').hide();