Josh, welcome to the forum. /forums/images/graemlins/smile.gif I hope we can make some valuable suggestions.
Do you have an Owner's Manual for your tractor or loader? Have you talked to your NH dealer or his service department?
I just bring that up because my 16LA Owner's Manual has all the times recorded in a nice table for easy reference. /forums/images/graemlins/cool.gif
Before you start making adjustments to the hydraulics, you need to establish some standards. For example, what is the normal lift and curl times for the 7210 FEL? What are your current times (empty) for roll, dump, and lift? All measurments should be made with the tractor warmed up. Even if you know it's too slow, how will you be able to see improvement if you don't have the current times recorded? /forums/images/graemlins/confused.gif
Once you have those times recorded, you can make accurate comparisons to the tractors original specs. Trying to achieve faster times is probably not advisable. It's just my guess that this type of troubleshooting can be slow and tedious. /forums/images/graemlins/frown.gif
How about your 3PH? Does it also seem slow?
Well, I guess you asked a simple question and I asked you a bunch more instead of answering your question. Sorry... /forums/images/graemlins/blush.gif I wish I had the answer, but all I have is suggestions for research. /forums/images/graemlins/wink.gif