Greeting, recently my scriptplayer get really laggy, like it only got 10 fps, after playing around for a bit, I realize it is affected by the current display size of the scriptplayer, if in fullscreen, it is 10 fps, if I make it to somewhere to half of screen, it is somewhere around 30fps, when I get to about 1/6 of my screen it got the usual smooth frame. I tried to reinstall the software but doesn’t fix the problem, and it been working just fine and the problem only came up recently.
Did you start scripting 4k videos?
Maybe you need to downscale them a bit?
Other option is your GPU stopped working for whatever reason