The refresh frequency of the screen is 60Hz, and the refresh frequency of the map is 30Hz, so the operation of the map is relatively slow. I use local SQLite map data, when the map window is small, the redraw time is 0.015s, and when the window is large, the redraw time is 0.046s
Hello @zcwbnu
I’m not sure what makes you say that the map refresh rate is 30Hz. There’s no such ‘clocking’ of the redraw. I would first refer to this answer and see if it helps.
Regards,
Jerry.