I have a video project including 40 clips, in average 2/3 minutes, at high quality (400MB /min).
If I import a single clip in the project, the video preview is fine, however, having many of them lined after each others eventually causes the video preview to lag. If I pause and give it a few seconds, the preview after resume is fine for a while then starts lagging again.
CPU usage is bellow 20%, RAM is 1.5GB used out of 6.5GB, however disk usage is high. I assume the software can't keep up loading the video fast enough due to the heavy weight.
Is there a way to fix this issue ?