One thing that's missing from a lot of arcade cab builds is that old games often don't run at a 60Hz refresh rate, and so you get a strange jittery effect as it

One thing that's missing from a lot of arcade cab builds is that old games often don't run at a 60Hz refresh rate, and so you get a strange jittery effect as it has to skip or duplicate frames to display at 60Hz on normal LCD monitors. FreeSync/G-Sync makes a tremendous difference, but unfortunately does this to the price as well :( Edit: Or you can use a CRT :)