Hi Androcles ! I tested you programm in my controller. https://youtu.be/RMO-UQGULYk
And i not see a noticeable slowdown. Only at the end of the program present there is a slight slowdown: https://youtu.be/pxYPNGNlHjY
Parameters of my controller:
34,35 - 800
45,46 - 1000
263,264 - 2000
99 - 1000