Is it possible to enable VSM cache and disable WPO in Scalability?

Hi all!

For the game im working on we are trying to squeeze out as much performance as possible on the Low Scalability setting, and I was wondering, are there any commands available to force set Virtual Shadow Maps to be fully cached, at the moment they are part cached and part movable because of windy trees. Plus I wonder, is there a command that disabled all WPO on static meshes like trees who have wind?

Cheers!