Help power is no longer correct

A very good evening from Germany,

I have a big problem, suddenly (probably I have something adjusted) my performance data is no longer correct, Holt (poplar wood) I have previously lasered with a power of 60% now I have to below 10% and leather even down to 1.5%, this gives in the end of course only a very small ranch to engrave details, can you help me there evtl?

Greetings

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