ACS is Advanced Control System, that lets you switch between hand and foot control of the lift and tilt. SJC is Selective Joystick Controls, that is hand controls only for drive, and lift/tilt, but lets you select between H pattern or ISO pattern controls.
If a pump is failing, it fails and stays that way. It does not act up a little here, then work correctly for a while.
The BICS solenoid is what activates the BICS (Bobcat Interlock Control System) which is what prevents the lift and tilt from moving when the seat bar is raised, or the cab door is open, etc. The BICS system locks the lift and tilt using PD10 lock valve cartridges on the main control valve. The solenoid provides pilot pressure (charge pressure from the hydrostatic pump) to unlock the PD10 lock valves to allow the lift and tilt to operate when you enable the system.
You said the boom will raise slowly, and will not come down and the tilt will not move. This sounds a lot like the BICS system not fully activating.
If you are not comfortable, or familiar with the system, the best advice I can give is to have your local dealer take a look at the problem.