John deere 830 rockshaft and lift arm problems continued

I had a previous post from last year about this problem and found the main issue I believe?
So this spring I decided to use my box blade only to realize that my lift arms would barely raise the implement. I had to look under the rockshaft housing which was the plan anyway. Once lifted I immediately found the issue from my main question. The cam follower arm had broken off and landed in the catch pan behind it, thank goodness it didn't land on any gears. The lift arm linkage was also bent some, part #19 in drawing, so I straightened that without having to remove it. I may have also fiddled with the slotted adjusting screw for the lifting and lowering valve clearances to the cam linkage, so I'm going to set it proper to make sure the valves aren't being preloaded and bleed by.

My question is, with these two main things being known issues. Could this be the main reason I'm not getting lift at any load setting, or is it advisable to rebuild some of the other parts like the cylinder and or valves? Taking the housing off again, is pretty simple with an engine hoist but before this linkage and cam follower problem, the lift arms lifted with great force and proper speed?

Thanks in advance.

L/D mechanism needs to be set following the several steps outlined in your tractor model tech manual. How long since hyd filter was changed & hyd oil suction screen checked/cleaned?

Thanks for the reply.
I checked the filters and suction screen
about a year ago. and changed the fluid
My front end loader which comes from the
main tractor hydraulic system has plenty of
speed and power.
I will investigate the L/D setting
procedure.
After fixing the cam follower the 3 point
arms work correctly under no load at all
with the LD settings The photo showing the
old broken follower. After installing a new
follower I made sure it lined up with the
actuator when I set the rockshaft cover
back on. but as soon as I have a large box
blade on it now, it can barely lift it.
Only when moving the loader up and down
shaking the tractor somewhat does the 3
point creep up high enough off the ground
and stay up with an implement on it.

The broken cam follower you replaced & associated 3pt control linkage being out of correct adjustment/orientation is the reason 3 pt operates slowly

I am almost thinking something else got damaged or bent out of adjustment. Housing Part #19 lever was bent but I was able to straighten it without removing and get it set right in the slot of linkage part# 16 of the second image.
I went through the load control adjustment and the neutral range adjustment. Everything works correctly when I attempt to lift but the arms have just no power to lift an implement.
I can say that I feel almost no resistance from the lift arm lever but it moves the lift arms and I also feel almost no mechanical resistance from the rockshaft adjustment LD lever, like it's barely attached to something but it does adjust the height of 3 point arm lifting with no implement. It acts like there's no pressure but like I said the loader has good power off the pump system. Will be checking the filters and screens soon.