Keymap performance issue?
Make a keymap for now call it timers.
Then put a key in there, we'll call it masterkey.
Then add keys 1-10 with that naming convention on the following criteria.
Advanced - map key is off by default.
step 1 don't advance to step 2 for 1.5 seconds
step 2 turn off the key.
Then call all 10 keys from the masterkey.
Now, in your main rotation add the masterkey from timers.
In game, run the rotation however you normally do. For me this resulted in a FPS loss around 20 frames. Pretty significant. Though mileage will vary based on concurrent instances. Mine was worse at 5 than it was at 2.
Now disable the timers keymap and try again. The FPS loss should be gone.
I'm interested to see if anyone else has the same results.
Edit: Probably worth noting that my CPU and RAM resources never went above 50% during this test.