diff --git a/firmware/src/gui.c b/firmware/src/gui.c
index 2d4da4a..4fe986b 100644
--- a/firmware/src/gui.c
+++ b/firmware/src/gui.c
@@ -406,8 +406,6 @@ static void sliding_render()
 
 void gui_loop()
 {
-    event_proc();
-
     run_background();
 
     if (slide.sliding) {
@@ -416,5 +414,11 @@ void gui_loop()
         pages[curr_page].render();
     }
 
-    st7789_render(true);
+    st7789_flush(false);
+
+    /* Control things when updating LCD */
+    gui_level(aic_cfg->lcd.backlight);
+    event_proc();
+
+    st7789_vsync();
 }
diff --git a/firmware/src/st7789.c b/firmware/src/st7789.c
index 39cd0e2..cc7fe02 100644
--- a/firmware/src/st7789.c
+++ b/firmware/src/st7789.c
@@ -196,7 +196,7 @@ void st7789_vsync()
     dma_channel_wait_for_finish_blocking(ctx.spi_dma);
 }
 
-void st7789_render(bool vsync)
+void st7789_flush(bool vsync)
 {
     if (dma_channel_is_busy(ctx.spi_dma)) {
         return;
diff --git a/firmware/src/st7789.h b/firmware/src/st7789.h
index 1f6eb2d..07fc096 100644
--- a/firmware/src/st7789.h
+++ b/firmware/src/st7789.h
@@ -18,7 +18,7 @@ uint16_t st7789_get_crop_width();
 uint16_t st7789_get_crop_height();
 void st7789_dimmer(uint8_t level);
 void st7789_vsync();
-void st7789_render(bool vsync);
+void st7789_flush(bool vsync);
 
 #define st7789_rgb32(r, g, b) ((r << 16) | (g << 8) | b)
 #define st7789_rgb565(rgb32) ((rgb32 >> 8) & 0xf800) | ((rgb32 >> 5) & 0x0780) | ((rgb32 >> 3) & 0x001f)