as a new user i say hello … but from the start i have the same problem with shotcut version 21.03.21
intel i7-4790K, 16 GB RAM, NVIDIA GeForce GTX 1070, SSD
i work with relatively simple material: full HD mp4, 1 video track, 1 audio track, video clip lenght 3 - 10 min, total video project length ca. 30 min
in the first minutes of the project everything works fine. the more clips i add over time and work on them, the slower the response time becomes. from a project length of approx. 15 minutes, it is no longer possible to work efficiently. when i click on an item in the timeline, it takes longer than 10 seconds to react. click on a item wait 10 sec until it is selected, cut item wait 10 sec until it is cut, click again on the item wait 10 sec until it is selected, move it and wait 10 sec until it moves, etc. …later in the project it will be 15 seconds, etc. …no chance to work without going crazy.
what i tried:
- have tested all display methods
- lowest preview scaling
- with or without proxy
- latest GPU drivers
- complete reinstallation of win 10
…none of it did anything. the problem remains the same. in other software like davinci resolve i can work completely fluently and very quickly also on large projects.