Can I make this extruder work by changing motor?
In general I would use https://github.com/rcarlyle/StepperSim which takes into account more parameters.
You can play with voltage and current to see which combination gives you the best results for your motor.
Or you can change to a TMC driver with higher voltage (35-50 V) to keep torque at much higher speeds and push the current motor more.
Since the torque you require is likely not so high, you can increase the speed of your stepper motor with 3D printed herringbone gears, for example 4:1. They don't need to be super accurate, backlash is totally fine considering the ridiculous 40:1 reduction.