Is there any way to clear the Dimension cache?
clear cache option
Ah gotcha! There’s no command for that at the moment but I’ll bring it up with the team! For now you’d have to close the app and re-open it.
Jacqueline Davis commented
Like with Premiere or After Effects or Photoshop, if the program is running slow, you can clear the previews cache/wipe the scratch disk (I feel like there's a new way to say it every time) and help out the over all performance of the program.