Two things on the Taurus 94, I own, also.
For the trigger problem there is a slight solution and it worked for mine.
Using snap caps(yes, they make them) run them through 500-1000 trigger repetitions with dry firing. That or use empty cases for it, but the empty cases will need moving every two or three times around the full cycle of the cylinder.
This does not need to be done all at once. Set your own pace and dry firing improves the ability to shoot if done right. This smoothed and lightened the trigger pull. Do not replace the trigger springs with lighter ones.
As for the cylinder being tight, they are. That and the brass used for .22lrf will expand greatly. That and the cylinder chambers need dutiful scrubbing with a bore brush and solvent after each range session. With some use extraction will get easier over time.
Grime and grit for a short session can even cause some hard extraction problems, but I've seen the same thing happen with other .22lrf revolvers.
.22lrf is dirty overall. It does not take much use to cause problems.
My 94 has had no major issues and is the understudy gun to the larger revolvers. It's about the same weight and practicing with .22lrf ammo is cheaper than shooting center fire ammo.