All you want to play with is....
1. EYE setting, go to EYE>SHOW, and open the bolt (with no air) and then pull the trigger and close the bolt. Mine reads about 008 when open, and 243 when closed. Then go to EYE>SET, the default is about 128, you want to drop that to about 15-20 (The trick is to open the bolt whilst on EYE>SHOW and drop a ball into the breach, put your hand over the top to stop light getting in, and look what reading is there, then change the EYE>SET setting to that figure + 10 or so, ballpark)
2. Unscrew the RHS of the grip, and set it to Fr FAST and reset the marker.
You are now done, go play outside.
This info was handed to me direct from Eblade God, I would not suggest playing with the timing settings unless you have a real good understanding of cocker operation.