I just went through this. No need to get a Timney, though it would be a great option. There is a kit available on eBay & other places, about $10, good reviews. You get a new spring, a screw, thin washer to eliminate play side to side.
I ended up cutting about 1.5 coils from the factory spring, with the intention of getting the replacement spring kit if it didn’t work out. Mine came down to just below 3 lbs on my trigger gage. I put in one thin washer I had in my screw bucket. For now I’m calling it good, gun fires fine.
Do a net search, a lot comes up dealing with the Axis trigger.