So I started speed running Super Mario Bros again after just over 2 years and I just started to get good until today. I was watching a video by Kosmic and he recommended playing on a CRT, so I decided to try it out to see if it helped me improve, but I just found it weird with no input lag and it felt like I was just watching prerecorded video and pressing buttons along with it, and when I tried to go back to my normal TV the input lag felt horrible, so now it feels weird when I play on both TV's. Has anyone got and suggestions to help get used to playing on a CRT faster?

Only use the CRT

Also, just keep at it. And if the brightness hurts your eyes (CRTs can emit a lot of light), don't be afraid to turn the brightness down.