I agree with Mr P, your going to have to get the rear shocks into the right geometry- as they are, they will always be to slow to do anything effectively.
Would also suggest a double adjustable front shock set pretty loose on extension.
Might actually loosen it all the way up, see what you get from it, then start tightening it up until you have the right combination of front end travel and ride stability since your street driving.
I don't think much is going to help until you resolve the shock geometry in the rear.

Just my opinion.