slow bucket response Kubota KH 70

I have Kubota KH 70 that has slow bucket response. I recently changed all 3 of the short hoses from the tank manifold to the pump. At first the response is very very slow but gets a bit faster after 4-5 cycles in just a few minutes but still slower than normal. The actuator (right stick) is very hard almost like something is binding it. Before the hose change I didn't notice this resistance perhaps due to normal bucket response. All other hydraulics work OK - normal speed. I must confess these hose ID's were 1.080" which I could not find so I stretched a 1.00" id hose onto these connection ports. Since all other actions are normal I doubt this is the culprit. Also do these machine have aux ports to add a hydraulic thumb. If so how do I identify this please. Thanks to all