Game slows to a crawl after attaching things with KAS

[StarkRG]

And by "slows to a crawl" I mean about one frame, or less, per minute (with brief spurts of about 1-2 fps). It actually seems to speed up a little (but not by much) if I.let go of the ship and move around with suit thrusters (which is rather dangerous when operating at extremely low fps)..

I've got a lot of mods so it'll take a long time to compile a list of what mods I've got installed (but can if you really want me to). The important ones to this situation are KAS and Orbital Material Science and the part in question is the KEES Passive Experiment Carrier. The problem goes away, however, if I manage to get back inside and then EVA again. Basically it feels like it's going into a processing loop.

What's causing these hangups? What, if anything, can I.do to relieve this issue?

[Secret Agent Kirrim]

May need to remove the mod. What I saw is that KEES is not compatible with both, and could be causing the frame drops.

[helaeon]

I've had issues with after altering a craft with KAS that the game still thinks the part is attached. For example, I have a little flier on Duna that I hook up to the main base to re-fuel with a fuel pipe. If I unhook that pipe and the pipe end and fly off, my ship rolls like the part is still attached. If I quick save and reload before flying off all is good.

Maybe Quicksave and Reload. That has been a big work around for KAS for a long time.

[Eiktyrner]

Toggle to the ship and then back by using [ ] and it will be gone.

No idea why it's happening though but that solves it for me.