Please take a screengrab of your settings and upload the file.
You should do some burn and cut tests on scrap to figure out the best settings.
For diode lasers, especially the lower powered ones you are going to need high power, slow speed, multiple passes, and I cannot say this enough, AIR ASSIST.
I would recommend using 10mm/sec 100% power with at least 6 passes.
If you use mm/min, you’d need to use something around 600mm/min and 100% power with at least 6 passes.
Each material is different so start with a power scale.
Welcome to the forum and lasering!