Focus CR-Laser Falcon 10w

Hi Creality comunity.

I have some issues with my Falcon 10W
I already have a S9, and thought i would like to engrave a bit faster, more power etc.
And was satiesfied about my creality 3d printer, so i looked for a creality.
so i bought a cr-laser falcon 10w. (second hand) with low burning time.

I was looking forward to compare the 2 engravers since im a bit on the limit of my S9.
Now i engraved exactly the same part, used same program. only reduced the power from 95% to 50% since the creality has twice the power.

But to be honest i was a bit suprised there is so much diference in these 2 lasers.
it almost looks like the falcon if not on correct height, but i checked that twice,

Can some one tell me what iam doing wrong or is this just the quality i can expect from a older Falcon?

Here you can see the comparrison of the 2 parts i made.


Thanks,
Danny

Can you check for loose belts and other loose parts first?
You are using the highest of the three steps of the leveling piece?

Thanks for your reply,
Yes,I already re adjusted the belts, and rolers.
Everything is good before i started.

And also yes i use the highest step.