Seeking through the video (while having the seekbar preview feature off) by double clicking a subtitle also causes the GUI to stutter for a few seconds, so the main issue of this Issue will remain, but most excrutiating problems with it can be workarounded with the aforementioned grace time seekbar preview period. (double clicking a subtitle usually means that I intend to play the video, so the system GUI getting hiccups from it isn't as bad as moving the mouse cursor through the seekbar - I'm just...
Fun fact - I disabled Seekbar hovering, and while the seekbar preview doesn't occur, the GUI stutter happens anyway. The video has been paused for a few minutes, I move the mouse over the seekbar, the entire system GUI starts stuttering and I can barely move my mouse. There is something finicky happening there.
So I tested it and it appears to indeed by the seekbar feature. There is an easy way to solve it WITHOUT turning it off. We need a configurable grace period before the seekbar activates its function to render the preview. Currently, in my testing: 1. Video is not playing. (i.e. the issue itself indeed isn't caused by the playback itself. I just tested it, and as long as I do not cross the seekbar, pausing the playback doesn't trigger GUI "hiccuping") 2. I move the cursor from the video player area...
a strange subtitle division bug
I won't be testing this. I trust you. :P
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