There are basically four things you can do. First is to replace the trigger spring with a lighter spring (like from a pen) to make the trigger pull easier. Second is to buy a double trigger, which may slightly increase your rate of fire, but not by much. Third is to purchase a response trigger, which uses excess Co2 from the Tippmann (which is automatically wasted after each shot) to reset the trigger faster than a spring. It will make the pull heavier, but allow you to shoot fully automatically if you place your finger where it sets, and resets. Last is the E-trigger, an electric solenoid and board that takes out the mechanical link from trigger to sear, and allows you to shoot semi, burst, and full auto. It runs on battery, makes the pull incredibly lighter, and must be turned off after every game, to preserve battery life, because without a battery, your gun will no longer function.
Some of them do, it depends on the model.
All paintball guns are regulated at around 290 fps, the model is irrelevant.
It depends on the model of paintball marker you have, for example a Tippmann A5 in semi-automatic would come up to about 8BPS.
If you want to.
It all depends on the model
No.
Smith and Wesson Model No. 2
Which model?
Depends on the model
It depends on the model.
Model variation
Timney makes a great aftermarket trigger for the Remington model 700,that will fit your Remington model 722 rifle.