Material settings for Full Spectrum "hobby laser 40W 5th gen + cardboard?

Hi-I am new to the Full Spectrum "hobby laser 40W 5th gen"--I have a bunch of 123dMake projects to laser-cut in single-ply corrugated cardboard and cant seem to get the right settings for power, speed, and current (top burns, bottom not cut through, etc)--Anyone out there have any "approximate" settings that have worked with single-ply corrugated and that machine? I am grateful for any tips and suggestions! thanKS.

Picture of Material settings for Full Spectrum
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Those cuts look very badly focussed. We use 70% 30mm/sec on our similar laser.