If you are only using one of the three layers in the screen controllers and you have a problem with preformance on the computer you can remove a layer on a Screen controller.
This is normally used when you have multiple screen controllers so that you have one that maybe allways show scoreboard or when running setups on laptops where capacity is limited.

Then you can remove the layers not needed and that way improve preformance.

Go to --> Settings -> Screen controllers --> Press the advance tab and remove the layers not used.