My toilet dose not have a adjustment on top for flow rate and I have to flush 3 times to get stuff to go down good.

What type of flush unit is it... the type with a tank that looks like a home toilet or the more common lever type flush as made by Sloan and others?

If you have a sloan valve (or similar) you want to unscrew the capped end of the shutoff (see image) and loosen the screw inside... should increase flow rate/volume.

Mark