Hey. I have an I5 6600u, 1060 3GB, 16 GB of RAM, which runs most games above 100fps so its a decent enough pc. I used to never have this problem, but recently I've found a problem where whenever I input a video into the timeline, the timeline lags a little. But when I try to cut it into smaller 3-4 segment clips for editing purposes, the preview either won't load the clip, or will stutter incredibly. But mainly the timeline lag when I try to click on different parts of my timeline, three dots appear next to the Frame counter (...) sometimes 4 dot. I've tried all the regular fixes with my GPU on and off. I have allocated 10GB of RAM (a little too much but that shouldn't make it worse) I'm just out of ideas to fix. I've even tried lowering the Preview quality, but I can barely make out whats going on with anything below Preview. Any fixes? I'm also on Windows 64 Bit