The rate at which the player aims down the iron sights seems to be directly tied to the framerate of the game. I find that when my game runs at 60 FPS, the ironsights are snappy and fast, whereas when the game runs at 30 FPS or less, the ironsights drift into place slowly and sluggishly. It makes handling the weapons feel like a chore when the game runs at an even slightly less than superb framerate, and makes weapon handling feel very inconsistent.

I believe the issue stems from the ironsight lerp being based on the current frame of the game rather than the time since the iron sight started, and I would be very appreciative if the addon author could fix the issue so that looking down a weapon's sights uses actual delta-time since the last frame.