Go to the settings for that camera and select "send type". Choose Once/24 hours or Twice/24 hours. Then make sure you click apply settings once you have done that. Then in settings you will have the option of Send time/1 and send time/2 (if you selected twice daily). Just plug in what time you want your pictures transmitted in a batch (uses military time). Be sure to click on apply settings again. Give it a day to let the settings kick in.
This will conserve batteries and allow the fast trigger times.
Staying on "TIMELY" will keep the camera busy trying to transmit after every trigger. It slows things down A LOT.
I really recommend changing that unless you simply must know immediately what's going on, but you will miss a lot of pics by doing so.
