High input lag when connect hdmi to tv

Hi everyone.

So I am testing xcloud gaming and I am having a few problems.

The thing works great on my laptop, and when I connect to my monitor. Very low input lag, good resolution and what not.

However when I connect to my tv, it gets terrible to the point it is unplayable.

The tv is recent, and is a xiaomi smart tv with game mode and with 4k.

When I just use the second screen, it is horrible, when I duplicate screens it gets much better but still with inpit lag. However, when in duplicated screens, on the laptop it runs smooth while on the tv it still has some input lag.

Do you have any idea why this happens?

Greatly appreciated !