Yep;
Ditto on the engine speed; I think we beat this to death earlier on the 7520's
Check your loader specs.below and see that rpm's is related to loader cylce times.
Mahindra USA - Attachments and Accessories
I suggest set the hand throttle at mid or above, use a lower gear where full clutch engagement can be employed/ foot off pedal. Spilling the clutch will cost $$$. desiels where made to rev, they have a govenor that will protect it.
Lugging a engine will cost $$$. Use the foot feed to pick up more rpm's when moving to dump.
I have loaded over 70 yds of gravel for the barn yard in the short time that I have owned my 7520. Ever time I use it I am amazed at how it acts like a commercial loader. Digging out of a bank,whallering thru the mud, etc.