Ffkwaeo

You're running S4 under VMWare and Xigncode/Themida don't complain?
Yes I actually comment the priority line in my scripts because in my experience anything that wasn't the default one performed worse, but maybe I thought it was just me so I left it in the topic. I'll follow your suggestion and put both on High. You should post that stuff in the topic itself as a contribution sir.
If the high precision sleep I have included among the optimizations doesn't help you, then you should check RHCP's topic (a great AHK contributor) for alternatives, that's where I took the "sleepz" function from:

Hello there! Damn MyS4League is long time dead! I appreciate the SendInput tip, but actually, according to some benchmarks I did, SendEvent if properly optimized ends up being the fastest Send method in AHK, further details can be found on this thread . In that particular script I wrote precision wasn't really necessary. Now that I think about it, maybe I should've used SendPlay which is supposed to be the most compatible (but slowest) one lol