settaggio laser neje A40640 pro

he neje A40640 pro when I use it with “Lightburn” the xy axis are reversed, in the sense that it produces the home position on the right end while the switches are on the left side for both the x and y axis.
Second question on the NEJE software the correspondence of the advancement is expressed in milliseconds, while on your site the cutting ratios are expressed mm / min I can have a conversion table expressed in milliseconds for the various cuts from 3mm 4mm 5mm 8mm. Thanks

You can try this method to solve the problem
https://neje99.com/faq/about-grbl-setting.html