Let's see:
- FSD ranges roughly doubled since launch through Engineering.
- Jumponium and Neutron boost tech added to extend it further
- Nearly every other piece of equipment has about 50% more effectiveness through Engineering.
- Shield Boosters, HRP, MRPs added to effectively boost hit points by 3 or 4 times.
- Weapons can have special effects.
- Ammunition can be Synthesized in more powerful varieties.
- Anti-corrosive Cargo Holds now exist
- An extensive array of drone tech since launch for Mining, Refuelling, Piracy, Repairs, etc.
- Deployable ground vehicles
- Deployable fighters
- AX weapons for squashing bugs
I'm sure I missed some.
So there's plenty of tech gain already.
With more power creep coming in Beyond..