2024 sketch up - layout issues

I would say I am an advanced intermediate user, an architect (40+ years), windows 11 (ran the checkup install app& all is well w/ my machines). I recently upgraded to 2024 because I was having issues viewing the files in explorer and rather than reload 2023 I installed 2024. Issues:

  1. In SketchUp I created a file w/ a cad site plan, location aerial, bldg from another file as a group. The file is only 13k. I have done this many ties w/ previous versions. The file loads very slow in 2023 & 2024.
  2. Is there a way to “audit” or fix file issues w/in the file? I have a lot of time into it and don’t want to restart.
  3. When saving as “vector” it takes FOREVER and/or will crash. The plot difference is significant. Is “Hybrid” quicker?
  4. Not crazy about leaving all rendering as Raster.

Lex