diff --git a/src/drv/hasp_drv_touch.cpp b/src/drv/hasp_drv_touch.cpp
index 317d8f18..c89c0021 100644
--- a/src/drv/hasp_drv_touch.cpp
+++ b/src/drv/hasp_drv_touch.cpp
@@ -174,7 +174,7 @@ static inline bool drv_touchpad_getXY(int16_t* touchX, int16_t* touchY)
     return touched;
 }
 
-bool drv_touch_read(lv_indev_drv_t* indev_driver, lv_indev_data_t* data)
+bool IRAM_ATTR drv_touch_read(lv_indev_drv_t* indev_driver, lv_indev_data_t* data)
 {
 #if TOUCH_DRIVER > 0
     int16_t touchX = 0;
@@ -211,7 +211,7 @@ bool drv_touch_read(lv_indev_drv_t* indev_driver, lv_indev_data_t* data)
     return false;
 }
 
-void drv_touch_loop()
+void IRAM_ATTR drv_touch_loop()
 {
 #if TOUCH_DRIVER == 911
     GT911_loop();
diff --git a/src/drv/tft_driver_tftespi.cpp b/src/drv/tft_driver_tftespi.cpp
index ac418422..b849cf5a 100644
--- a/src/drv/tft_driver_tftespi.cpp
+++ b/src/drv/tft_driver_tftespi.cpp
@@ -123,7 +123,7 @@ void TftEspi::set_invert(bool invert)
     tft.invertDisplay(invert);
 }
 
-void TftEspi::flush_pixels(lv_disp_drv_t* disp, const lv_area_t* area, lv_color_t* color_p)
+void IRAM_ATTR TftEspi::flush_pixels(lv_disp_drv_t* disp, const lv_area_t* area, lv_color_t* color_p)
 {
     size_t len = lv_area_get_size(area);
 
diff --git a/src/drv/touch/hasp_drv_ft6336u.cpp b/src/drv/touch/hasp_drv_ft6336u.cpp
index 15cc921d..41835cd0 100644
--- a/src/drv/touch/hasp_drv_ft6336u.cpp
+++ b/src/drv/touch/hasp_drv_ft6336u.cpp
@@ -1,17 +1,17 @@
 #if TOUCH_DRIVER == 6336
 
-    #include <Wire.h>
-    #include "FT6336U.h"
-    #include "ArduinoLog.h"
+#include <Wire.h>
+#include "FT6336U.h"
+#include "ArduinoLog.h"
 
-    #include "hasp_drv_ft6336u.h"
+#include "hasp_drv_ft6336u.h"
 
-    #define RST_PIN (TOUCH_RST) // -1 if pin is connected to VCC else set pin number
+#define RST_PIN (TOUCH_RST) // -1 if pin is connected to VCC else set pin number
 
-FT6336U * touchpanel;
+FT6336U* touchpanel;
 
 // Read touch points
-bool FT6336U_getXY(int16_t * touchX, int16_t * touchY, bool debug)
+bool IRAM_ATTR FT6336U_getXY(int16_t* touchX, int16_t* touchY, bool debug)
 {
     if(touchpanel->read_touch_number() != 1) return false;
 
@@ -20,7 +20,7 @@ bool FT6336U_getXY(int16_t * touchX, int16_t * touchY, bool debug)
     return true;
 }
 
-void scan(TwoWire & i2c)
+void scan(TwoWire& i2c)
 {
     byte error, address;
     int nDevices;
diff --git a/src/hasp/hasp.cpp b/src/hasp/hasp.cpp
index 203080dc..3e6596b1 100644
--- a/src/hasp/hasp.cpp
+++ b/src/hasp/hasp.cpp
@@ -102,7 +102,7 @@ lv_font_t* hasp_get_font(uint8_t fontid)
 /**
  * Check if sleep state needs to be updated
  */
-bool hasp_update_sleep_state()
+bool IRAM_ATTR hasp_update_sleep_state()
 {
     uint32_t idle = lv_disp_get_inactive_time(NULL);
 
diff --git a/src/hasp/hasp_attribute.cpp b/src/hasp/hasp_attribute.cpp
index 2ae49d51..6f2f23ac 100644
--- a/src/hasp/hasp_attribute.cpp
+++ b/src/hasp/hasp_attribute.cpp
@@ -1449,7 +1449,7 @@ static void hasp_process_obj_attribute_range(lv_obj_t* obj, const char* attr, co
  * @param update  bool: change/set the value if true, dispatch/get value if false
  * @note setting a value won't return anything, getting will dispatch the value
  */
-void hasp_process_obj_attribute(lv_obj_t* obj, const char* attr_p, const char* payload, bool update)
+void IRAM_ATTR hasp_process_obj_attribute(lv_obj_t* obj, const char* attr_p, const char* payload, bool update)
 {
     // unsigned long start = millis();
     if(!obj) {
diff --git a/src/hasp_gui.cpp b/src/hasp_gui.cpp
index 54288d51..91b399e6 100644
--- a/src/hasp_gui.cpp
+++ b/src/hasp_gui.cpp
@@ -72,7 +72,8 @@ gui_conf_t gui_settings = {.show_pointer   = false,
 // {
 //     lv_tick_inc(LVGL_TICK_PERIOD);
 // }
-void gui_flush_cb(lv_disp_drv_t* disp, const lv_area_t* area, lv_color_t* color_p)
+
+void IRAM_ATTR gui_flush_cb(lv_disp_drv_t* disp, const lv_area_t* area, lv_color_t* color_p)
 {
     haspTft.flush_pixels(disp, area, color_p);
 }
@@ -284,7 +285,7 @@ void guiSetup(void)
     LOG_INFO(TAG_LVGL, F(D_SERVICE_STARTED));
 }
 
-void guiLoop(void)
+void IRAM_ATTR guiLoop(void)
 {
 #if defined(STM32F4xx)
     //  tick.update();
diff --git a/src/main_arduino.cpp b/src/main_arduino.cpp
index d42604c5..2d5666d8 100644
--- a/src/main_arduino.cpp
+++ b/src/main_arduino.cpp
@@ -104,12 +104,12 @@ void setup()
     slaveSetup();
 #endif
 
-    mainLastLoopTime = millis() - 1000; // reset loop counter
-    delay(250);
+    mainLastLoopTime = -1000; // reset loop counter
+    delay(20);
     // guiStart();
 }
 
-void loop()
+void IRAM_ATTR loop()
 {
     guiLoop();
     haspLoop();