BMS Shiny heads

So if found BMS to be really laggy! So i tried an fps config to make it run faster,it worked! The problem is that it causes the characters to be shiny, reflective, or whatever it is on some parts of their body, it depends on the angle they’re facing and whatever. So my question is: What part of the fps config is causing this to happen? I’ve linked a screenshot

Founded in 2004, Leakfree.org became one of the first online communities dedicated to Valve’s Source engine development. It is more famously known for the formation of Black Mesa: Source under the 'Leakfree Modification Team' handle in September 2004.