I'd highly recomend you don't shoot at high rates otherwise you'll completely freeze the whole front end of the marker - seen it done resulted in the hose blowing off and all sorts (no permanent damage i dont think bus i doubt it'll do the solenoid much good in the long run
You could also set it to Classic. It makes it shoot like a mechanical trigger i.e. as long as the trigger is held the black block stays back - That should also help keep RoF down
Also there are alot of E-Blade settings on PB Nation
If you want to keep the ROF down, and I think that would be a VERY good idea until you get HP, just set the frame to Factory Med or Slow, and leave it alone.