Fusion 3d playback and render so slow

I,ve problem with fusion 3d being so slow. My compositition is 3 image planes with video, 4 3d shapes, 1 camera, 3 spot lights. 3d renderer node is set to OpenGL renderer. i am getting around 1.5fps playback.. When rendering i have gpu usage around 25% and cpu around 30%. Rendering on nvidia encoder in 1080p.

Where is the problem? or it is supouse to be so slow.

I've read that the Resolve version of Fusion is a lot slower than the stand alone Fusion.

You might be seeing that here.