Too fast pace

Looks like that I have been shooting in too fast pace. The 50m arrows was flying everywhere. even 2s and 3s :(. I went to 30m and the arrows still went to 3s and 4s.. I was wondering why?!? Then I slow down the pace. I started to take more time between arrows. I have been shooting 10 arrows at the time. Also have to start to shoot max 6 arrows at time or 3-4 arrows. It the field competition it's 3 arrows, so have to get use to that... Lets see tomorrow.. max 100 arrows and more time.