@俺がガンダムだ said in LVGL performance problem:

I applied LVGL on stickc-plus2，with TFT_eSPI's st7789v2 driver.But the refreshing rate is very low (while doing "load screen anim").I know stickc had good performance on drawing screen (by watching the video of M5stick T-Lite Thermal tutorial). And the LVGL also has a good performance through Dial-ESP32-S3 and Din-Meter demonstration video.

So what is the reason of such low performance. Cound it be the TFT_eSPI library?

I’ve seen similar issues on the StickC-Plus2. It could be due to TFT_eSPI settings, try increasing the SPI frequency or enabling DMA. Also, check your LVGL buffer config; full buffering helps with performance.

@khlmlutrija Hi , could you post your setup files ? and/or specific tips done to get it working the LCD?
I tried it but can only get sort of yellow/white screen with rubbish on it.

@gmnvh I reccomend to look in to "volos" projects on YT

@robski yes the simple use example I have used before

@felmue Thanks, my brain had collapsed
I see a few comments on Squareline studio and so looking at it.