I’ve had trouble with smooth scrolling though files to find edit points using Shotput. I’ve posted here about this a couple of time with little help. Fortunately, a youtube video by ‘Open Source Bug’ schooled me in the use of proxies which greatly improved my ability to easily and quickly find edit points in large videos.
If you have trouble with a machine which is underpowered to execute the editing you’d like to be able to do, proxies are the answer. They allow you to perform your edits on a clip with a lower resolution and then get shotcut to execute those changes on the larger file.
It would be a great enhancement to Shotput which is a wonderful, full-featured editing package.