Easiest change for you to make is the sway bars.
Play around with some combos. Current front with stiffer rear... run a pack.
Than back to the old softer sway in the back and go stiffer in the front, run a pack.
Then try one step stiffer front and rear from your baseline and run a pack.

Which combo got you the reduced roll that you are looking for?
The chassis rolling will increase the bite of the tires from the weight transfer to the outside so reducing chassis roll will also reduce traction in a turn. That may cause other issues since you said that it feels loose, it may feel even more loose with stiffer sway bars.

You can play with different springs, but then you are changing your oil weights. Lots of ways to attack this, but if you like how it jumps and handles bumps you may not want to mess with the springs or oil.
Sway bar changes will affect the roll of the chassis but not how it reacts to the other inputs from the track. Spring and/or oil changes will affect your overall handling.
If you can't find you sweet spot with roll bar changes, you will need to dig into spring & oil changes.