This is caused by combat mod. The mod needs to be reprogrammed from scratch basically to fix it. The combat mod developers gave up on combat mod b/c the steam workshop is such a pos and UWE made their game needlessly difficult to deal with modding as a result of the workshop dependencies among other things. So it will take until someone else remakes the whole thing to fix it or UWE patches their game. I mean we still have ip afk bugs in the main game for 3 months now with no patch. Unfortunately, the developers of this game simply do not appear to care very much about it now that they are working on a new project. Either that or not enough people bitching to make them fix any of these things.

Also if you want lag here is RL right now a few miles from here:
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