Water dispenser runs slow

only a few things can cause this,
1 check you water pressure,,,, make sure its not clogged, or slow from the supply
2 while you have the water disconnected, check the inlet on the refer, make sure the screen is clear of any restriction
3. check or change your water filter, it could be clogging
4 check to ensure that your water line has not been frozen behind the veg drawers
one of those should take care of your issue