Low Power First Time User Cloudray 50W Fiber Laser

Hey Folks. I am new to Laser Marking so please forgive any missteps. I’m trying to find the Max PWM setting for my new Machine. EZcad has it listed as 80Khz but I don’t know if it is correct. I’m still the stock 300mm lense system. When trying to adjust the focus and at 80% power, I do not get any sound and very little cutting on the test material. Seems way under powered as compared to some I’ve seen on youtube. How can I check the power out of the laser.
Many Thanks.
Bill from South Carolina.