How to reduce startup lag in X Mouse Button Control

I have used X Mouse Button control to reroute my mouse button 4 to a right click auto clicker. I did this by setting the key to rmb and making it repeat (option 6). But whenever I press the button it takes about 1 second before the thing actually auto clicks. I’ve tried adjusting the latency but that doesn’t work and I’m on the lowest latency of 0 anyways. Is there anyway to remove this startup lag?

Question by ItzzSync on Super User, licensed CC BY-SA. We show a short excerpt and link to the original thread as credit.