the proper hp fix is to add levels of armor.

in eve a frigate cant use the same plate as a battleship
in dust a scout shouldnt be able to use the same plate as a heavy.
make the basic light plate something like 66 and make the basic heavy plate 106.
then the basic medium plate would stay at 86.

light suits cant stack as much health but they can chose to tank the scout ineffectively if they choose and its done fair.
everyone wins

additionally you could choose to add resistance modules but that would require an entire overhaul of hp and weapon damage. it does need to happened to put the game on par with eve because in eve ships have inate resistances and resistance mods.
this would also require fixing the incorrect damage profiles and adding ammo into the game.amarr lasers are em.
railguns are kinetic damage with a little thermal and blasters are thermal with some kinetic depending on what ammo is used.
minmatar weapons are explosive. transfer the ammo types over from eve just reduce how extreme the stat differences are to make them fair within an fps setting.

Or just implement light, medium and heavy armor plates.

This is also doable as a hotfix.

That is literally, essentially, the same thing. Well, it at least achieves the same thing. The only thing, though, is that modules are organized by lists... looong lists. I think it would be simpler to just change the modules we have now into percentages rather than create new ones to clutter through.

...
I changed the stats to conform to something better(where gallente are top armour regen, amarr have second best and caldari/minmatar have the least)...