diff --git a/Marlin/src/inc/Warnings.cpp b/Marlin/src/inc/Warnings.cpp
index cf75f3dd28..f760920854 100644
--- a/Marlin/src/inc/Warnings.cpp
+++ b/Marlin/src/inc/Warnings.cpp
@@ -760,3 +760,7 @@
 #ifdef STM32F4_UPDATE_FOLDER
   #warning "Place the firmware bin file in a folder named 'STM32F4_UPDATE' on the SD card. Install with 'M936 V2'."
 #endif
+
+#if ENABLED(DWIN_LCD_PROUI) && BOOTSCREEN_TIMEOUT > 2000
+  #warning "For ProUI the original BOOTSCREEN_TIMEOUT of 1100 is recommended."
+#endif
diff --git a/Marlin/src/lcd/e3v2/proui/dwin.cpp b/Marlin/src/lcd/e3v2/proui/dwin.cpp
index f3a23ae1e4..8bd0a67b9b 100644
--- a/Marlin/src/lcd/e3v2/proui/dwin.cpp
+++ b/Marlin/src/lcd/e3v2/proui/dwin.cpp
@@ -1235,7 +1235,7 @@ void HMI_Init() {
       DWINUI::Draw_Icon(ICON_Bar, 15, 260);
       DWIN_Draw_Rectangle(1, HMI_data.Background_Color, t, 260, 257, 280);
       DWIN_UpdateLCD();
-      delay((BOOTSCREEN_TIMEOUT) / 22);
+      safe_delay((BOOTSCREEN_TIMEOUT) / 22);
     }
   #endif
   HMI_SetLanguage();
diff --git a/buildroot/tests/STM32F103RE_creality b/buildroot/tests/STM32F103RE_creality
index 834580fac8..bf56e12d7d 100755
--- a/buildroot/tests/STM32F103RE_creality
+++ b/buildroot/tests/STM32F103RE_creality
@@ -29,7 +29,7 @@ opt_enable DWIN_LCD_PROUI INDIVIDUAL_AXIS_HOMING_SUBMENU SET_PROGRESS_MANUALLY S
            SOUND_MENU_ITEM PRINTCOUNTER NOZZLE_PARK_FEATURE ADVANCED_PAUSE_FEATURE FILAMENT_RUNOUT_SENSOR \
            BLTOUCH Z_SAFE_HOMING AUTO_BED_LEVELING_UBL MESH_EDIT_MENU \
            LIMITED_MAX_FR_EDITING LIMITED_MAX_ACCEL_EDITING LIMITED_JERK_EDITING BAUD_RATE_GCODE
-opt_set PREHEAT_3_LABEL '"CUSTOM"' PREHEAT_3_TEMP_HOTEND 240 PREHEAT_3_TEMP_BED 60 PREHEAT_3_FAN_SPEED 128
+opt_set PREHEAT_3_LABEL '"CUSTOM"' PREHEAT_3_TEMP_HOTEND 240 PREHEAT_3_TEMP_BED 60 PREHEAT_3_FAN_SPEED 128 BOOTSCREEN_TIMEOUT 1100
 exec_test $1 $2 "Ender-3 S1 - ProUI (PIDTEMP)" "$3"
 
 restore_configs