S11 Ultra - really slow?

Just got a new S11 Ultra Tablet, to replace my A8 (as that was slow), I also play on an S24 and PC.

On S24 and PC it's fine, but as the A8 is a bit slow I thought the latest tablet would at least be able to run this smoothly.

Unfortunately, the performance appears to be even worse! every screen is laggy!

As it's a new tablet and fresh install, I am surprised there are any performance issues.