velocity loss

hey guys, i have noticed that i throw fast in bullpen sessions, but when i pitch with a batter in front of me i throw alot slower. i dont know why i do this, it could be because im scared of hitting them or something but i still am not sure. so can someone please help me. thanks

Hitting batters is just part of the game, let it fly, strike em out or bean em but you gotta throw hard.