904 Shifting problem

Ok today I added an additional quart of fluid to It. The level was already good added the quart anyway. Put a gage on and tested governor pressure. 0psi in park and 0psi through all the gears with the break on at idle. Lifted the rear wheels and checked again. Steady psi increase with RPM increase. Left the gauge on with it inside the car (extended the hose so I could read it while driving)and took it on the street and it did fine so took it on the freeway and did good. Before I couldn’t get it passed 40. Had it on the freeway at 70. Might need to adjust the kick down some more. Still didn’t seem to want down shift or at least not on time. Lot of traffic on the freeway though so couldn’t get on it so much. So still confused. Gonna let it set a few days and take it back out. Thanks for all the help everyone. I'll probably be back on soon. Not convinced the problem gone away.