Turning a 10 amp load on/off a 980hz is not recommended.
WHY? Happening on countless motors all over the planet at this very second.
From ebike's to diesel electric trains etc and beyond.
I run the motors in my robots at 12v 1A at 1khz PWM and they work perfectly.
10amps is just bigger motor, I ran 100A PWM motors years ago controlling machine in steel mills in Birmingham.