Do you have a link to a spring kit?
I bought a J-frame 642-2, 2-inch .38 centerfire Airweight, and the trigger was unbearable. So I ordered an Apex kit which a gunsmith installed.
Duty/Carry Spring Kit for J-Frame Revolvers
Now the trigger is easy. But I would like a gun with less recoil.

I would like to add a S&W .22 4-inch revolver for target practice. Less recoil and cheaper, more available ammo. But I understand a .22's trigger is even harder because it has to fire a rimfire cartridge. So a spring kit would be even more important.

But the Apex link says their spring kit is:
"For Use In These Guns
For use in all modern centerfire J-Frame revolvers manufactured by Smith & Wesson ..."

So I would be interested in a spring kit that works for the rimfire .22.