lag

on musescore 4 editor, when i get an orchestra sheet or more than idk how many instruments, the audio suddenly starts lagging a lot, idk why, once i select like the note c in one instrument in an orchestra sheet the audio goes "C- (cut off) c-c-c-c-c-c-c-c (echo) c- c- c- c- (many cut offs). unfortunately because of this site i cant load the audio or video to show but yeah it happens. when i play the sheet itself the audio lags, but when i export the mp3 or midi or anything else with audio, it doesnt lag, for some reason. also it might be because of the space i have for loading visual effects in my pc, i dont know how to look that, but the system itself has 847 gb free out of 930 gb.