Got 32GB 6000Mhz, It's not as if my save game files are large either, the last autosave is only 5,614Kb.
Also switching between the different areas in KSP 2 is faster. I just done a test, with just loading KSP 2 then loaded my save game, then from VAB sent a rocket to the launchpad, then reverted to VBA, on clicking the "Confirm Revert" button, to being back in the VBA took 59.50secs, then I quit back to the main menu then loaded my saved game again, and then did the same thing, and from clicking the "Confirm Revert" button, this time it took only 11.50secs, big difference.