Possibly.
I might try to settle the RR down before a FR suspension change. If your RR shocks are not already mounted at the innermost position(at the tower) I'd try that alone real quick to see if that keeps the rear from rolling more than necessary. Basically, I think you want to head toward the direction of keeping more weight on the inner rear from entry thru to corner center. If that makes the steering a bit more stable & predictable but still not enough, then I'd try stiffer FR springs.