at that price point, you can get a much more powerful NEJE laser.
This 7.5W one is a popular option.
and if you need air-assist you should get a larger (and possibly quiter) pump than the one in the kit you linked.

with a 7.5mm laser, you might be able to cut 8-10mm thick (depending on the material). and if you don't need that much power, just run the laser at 50%, essentially extending the diode's life significantly.

Ok, very interesting. I bought this model:

“NEJE N40630 Engraving Module Big Kit,7.5W Output Power”

https://www.amazon.com/dp/B08PNTLNSC/ref=cm_sw_r_cp_api_glt_fabc_0RXQ5ZW4W71AG70R3D38?_encoding=UTF8&psc=1

Do you know if this has the FAC lens on it?