Here's the only possible theory I can think of to as changing the model might increase ROF:
The animation used by a gun with a higher rate of fire may be smaller then a gun with a lower ROF which requires more frames. I guess this would possibly speed up your ROF, because you might not because u have less lag from the gun animation. However theres a easy way to test this. Just remove the model completely and you should get the least amount of lag from firing your gun possible, because there are no gun animations therefore you would get a higher ROF.
The animation used by a gun with a higher rate of fire may be smaller then a gun with a lower ROF which requires more frames. I guess this would possibly speed up your ROF, because you might not because u have less lag from the gun animation. However theres a easy way to test this. Just remove the model completely and you should get the least amount of lag from firing your gun possible, because there are no gun animations therefore you would get a higher ROF.


