The problem occurs when "Dual Screen" is "on".
And then, if "Keyframes"- and "Metadata"-Window is activated, it plays in 50fps (my Timeline fps).
In any other Window Configuration (with "Dual Screen" set to "on") it plays in low fps. It gets worse with "Spline"-Window activated.
Interesting behaviour. Could it have to do with dual Radeon VII and how they are connected? But then again, it shouldn't.
Peter Chamberlain wrote:moved to Resolve forum
Oh thank you. Picked the wrong forum then.