Reduce RAM usage

[RoninFrog]

I only have 8 gigabytes of RAM, and KSP uses up 7.5 gigabytes normally.  Whenever I build big ships or go into high physics warp, it starts having to swap about 1 gigabyte, which really lags the game.  Are there any settings in KSP that I can adjust that could potentially decrease the RAM usage?

I have one mod, Restock.

Edit: P.S. I am on macOS.

Edited April 7, 2020 by RoninFrog

[jost]

16 minutes ago, RoninFrog said:

I only have 8 gigabytes of RAM, and KSP uses up 7.5 gigabytes normally.  Whenever I build big ships or go into high physics warp, it starts having to swap about 1 gigabyte, which really lags the game.  Are there any settings in KSP that I can adjust that could potentially decrease the RAM usage?

I have one mod, Restock.

Yes, especially the graphic settings. Some settings of newer version are not covered so you will have to experiment with them, but this guide has some clues:
 

On Steam there is a more recent update even for 1.6.

Should still apply to current versions: https://steamcommunity.com/sharedfiles/filedetails/?id=1184854420

[RoninFrog]

2 hours ago, jost said:

Yes, especially the graphic settings. Some settings of newer version are not covered so you will have to experiment with them, but this guide has some clues:
 

Alright, thanks!  Lowered RAM usage by three-quarters of a gigabyte.