Slow Excavator Hydraulics

Hello guys... I have a PC75 Komatsu excavator, with about 4000 hrs. I have noticed that the hydraulics are starting to slow down... cant move the stick as fast, curl the bucket as fast.. etc.. anyway to turn that back up and make the machine a little bit faster.. its still plenty manageable, but like most guys, like that fast quick feeling when you pull on the controls.. thanks for input.

Slow Excavator Hydraulics