I just started to use OpenShot Video Editor to concatenate some short videos I filmed with my phone and add a sound track recently. The task is quite simple. But the software seems to mess up with the CPU or Memory or something. It's smooth in the beginning of a project, and then after half an hour or so, my laptop always makes a lot of noise and asks me to wait via a circle for every operation I do, while everything else than OpenShot can still function properly.
Well this is a new laptop, and I don't know what Task Manager means by 31; there're only 5 to 6 tabs open in Google Chrome. I'm afraid I'm totally a layman in computer and electronics. Can anybody point out the problem for me, please?