I agree active suspension is the answer to a lot of the problems, but the FIA dont want to bring it back, n 1993 active suspension was banned from Formula 1 as part of a series of regulation changes aimed at curbing escalating costs and leveling the playing field among teams.
I can see why the cost would be a problem , teams with more money would develop a better system, but could they not develop a system, that could be used thought the field and thats the system every team would use and would cost the same for all teams, OK it would been every car would have to re-designed, but there could be some deal done that would allow this, if all team agreed to it.
Or maybe some sort of part active suspension , that stops the bouncing up and down.