Can't change speed parameters for SITL Rover

[compadrejavo]

Greetings, I have been working with SITL for rover 2.50 and everything works fine except for the speed control, the simulated rover always goes up to 5m/s regardless of what I do.
The things I have already tried:

• I used the command vehicle.groundspeed = 1 but nothing happened.

• I tried changing the parameters directly with vehicle.parameters[SPEED_MAX]=1 and vehicle.parameters[WP_SPEED]=1, but I get the message ERROR:dronekit:timeout setting parameter SPEED_MAX to 1.00000 for both parameters. I can change other parameters not speed related without issue.

• I edited the speed on the default.parm file on sitl/rover-2.50, but nothing changed.

• I edited the rover.py file on dist-packages/dronekit_sitl/pysim, but nothing changed.

• I switched to copter and the commands worked fine there.

I don't know what else I could change to reduce the max speed, I would really appreciate some help solving this issue, thanks in advance.

[compadrejavo]

Ok, I found how to solve it, I had to tweak the maximum throttle of the rover to reach the desired speed, the parameter that must be edited is vehicle.parameters[THR_MAX]=10, the default was 100 and 10 gave me the speed I needed.