Dfin0490 :
My internet says 40 megabytes a second. What with the ps4 could if changed between the other TV to this one?
The speed download speed is not the only thing, you may have packet loss or high ping to servers. No clue about what would cause stutter in games or lag in a PS4, all I know is that "lag" is not from a TV unless you are talking about input lag, which is the time when you move a controller to when you see the thing respond on the screen. Lag as in things stopping for a second then continuing the game would not be from a TV. If you have a computer monitor to try with, try that with the PS4 and see how it acts. Or have someone local to you look at what is happening, it's hard to know for sure exactly what you mean when...