My transmission shifts way way too late

I don't have a tach but by ear it sounds like 3000-4000 for the 1-2. You just wait and wait for the thing to shift, sometimes doesn't even want to.

There is a green dashpot connected to a beige "thing" next to the IP. I tested the supply to this and at idle, its 0. When you rev it up, it goes to 5. This doesn't seem normal. What should be happening here?