2008 287c less Hyd attachment power???

I've had this machine since 2009 . It has 2500 hrs on it . It seems like over the last few yrs that it has less power on my attachments. I run a power rake a lot and it would almost stop spinning at times when normally it wouldn't . Then over the last few years I've been doing a lot of brush cutting and it's now at the point that simple stuff would stop it from spinning when back in the day I could just fly threw it. It is a standard flow 2 speed machine. I guess I looking for ideas why? Could the Hyd pump be getting worn?

2008 287c less Hyd attachment power???