Why does GPU show its running at a much higher frame rate than the limit?

Not alot about the GPU stats and frame rate limiters makes sense.

If you limit your frames, it limits your CPU frames, which also results in a visible limiting of frames (visually on screen you can see its a lower frame rate) but..
The GPU frames still seem unlimited?
I can't stop this game maxing out my GPU to 99% no matter what I do, even setting the frame limiter to its lowest setting, it still looks like its low FPS, but in the top right corner it still says my GPU is doing hundreds of frames and it still always uses 99% usage and sounds like a jet trying to take off x__X
Its been a little better on the menus after the introduction of the limiters, but not by much, it still uses more watts and in the menus than the actual game sometimes and makes the fans go crazy.
It doesn't matter if I max out graphics or have low everything

What do I need to do to get an actual sensible frame rate limit?

I have tried
resetting config
Latest video drivers
Fully removing and reinstalling video drivers
Repairing the game
DX12 on/off
Resetting shader cache
Vsync on
Many combinations of vsync, future frame rendering, AMD antilag and other video settings

What do I need to do to stop this game absolutely cooking my GPU? It's nonsense, its like no matter what settings I have, it ignores the frame rate limit and just blasts compute shaders in-between each frame for no reason? What is it mining bitcoin for EA? xD

Please,
How do we make this game not go so silly?