Mini-rbs are not working properly

Hello, I installed mini-rbs and encountered a problem: it’s not working properly because the lowering speed of my roller shutters is much faster than the lifting speed.

After the initial automatic calibration, if I lower the roller shutters and then press up, the roller shutters rise just above halfway and stop.

It turns out that mini-rbs measures the motor’s current consumption during calibration, ‘sees’ the sensors in the motor itself, and calculates the lowering time. Then it only works based on time, right?

Isn’t it possible to have the relay monitor the current consumption to determine the upper and lower positions?

Or add a setting to manually set the opening and closing time?