It's still drop but I found something but I found a pipe that is crush. I wonder if it could be the problem
View attachment 892871
The crushed line appears to be the top line to the hydraulic oil cooler.
The hydraulic oil cooler is supplied oil by the steering pump. The steering pump pressure is up to 1500 psi on the inlet to the steering control valve (SCV), but downstream of the SCV it becomes charge pressure for the Hydrostatic transmission and is regulated to <250 psi.
The hydraulic oil cooler is located between the SCV and the Hydrostatic transmission where the steering pump supplied oil pressure is <250 psi.
While it isn't ideal to have a flow restriction due to a somewhat crushed oil cooler inlet/outlet line, it may or may not significantly affect the charge pressure to the Hydrostatic transmission.
Monitoring the Hydrostatic transmission charge pressure via the port provided to make that measurement would tell you for sure if the transmission is getting sufficient charge pressure (and thus flow).
You could also just replace that crushed line to remove any concern that this is causing your issues.