Yes, the Option-O Lagom P80 is known to have stalling "quirks" specifically at its lowest setting of 300 RPM. While it features a 500W brushless motor with high torque, the controller includes a safety feature that may briefly stop the motor at very low RPMs if it detects overcurrent from high bean resistance.
Tips to Avoid Stalling
Slow Feeding: Dumping a full dose (e.g., 18g) into the hopper at once at 300 RPM is a common cause of stalling; feeding the beans slowly can help the motor maintain momentum.