i have dementia ok

Can I put a graphic over my screen and it be allowed? It is just a simple text box to remind me of something.

sorry the fps is low at some points idk why it is. if anyone else uses obs and knos why the fps is so inconsistent plz tell me

i watch speedruns and people just instantaneously skip the text and idk how to. are they just really good at spamming or is there another trick to it?