Struggling with a major bug

So as the title says, I'm having a really hard time with a bug. I'm fairly sure its mod related, but due to how it works, I'm having a hard time testing it to find the culprit and I'm hoping someone here might have an idea.

I'm on Solaris just grinding arena matches for fun. After a few matches, my mech (any mech) starts reacting terribly sluggish, the torso rotation slows way way down, the acceleration/deceleration gets really slow progressively, until eventually, I cant move the torso, or decelerate at all. The bug persists through saving and restarting the game.

If I reload an earlier save, everything is fine, for a few missions. This takes three or four missions to occur, but always occurs as far as I can tell. This is basically a game ender for me as it means I get about four more missions until my game is totally unusable. Has anyone experienced this or have any idea what's happening?