Just tried it out. Didn't notice any performance issues. I haven't run into any other 1-handers yet, but my weapons look sexy as fuck.
More people need to install this so they can see my obvious superiority.
All-in-all great pack. Good job.
There are also some fantastic side-effects with these changes:
1. It's easy to see what weapons on the ground are loomed or not. Saves time when scavenging.
2. You have a rough idea of how tooled up someone is when they are approaching.
I only wish that all of the items were done. We need to clone you so that you can work faster!