Radeon 7870 bottlenecked in Skyrim?

[opel65]

My 2vram radeon 7870 seems to be bottlenecked in-game.
The skyrim performance monitor shows 90-99% usage of the GPU when Im in-game.
The cpu was 65% at most. (4x3.4MHz)
the RAM was at only 800Mb, and I have 4GB.

Any idea to how I can reduce the load from my GPU onto my CPU or something similar?

[ENBSeries]

You can't do this, except by decreasing drawing distance or shadow quality (and it's drawing distance too). In your other post i saw skyrimprefs.ini and it's wrong, some important to performance parameters to be exact.