Yes, although with proper alignment it should be minimal. Figuring out where your laser’s sweet spot lies is part of the learning process.
It should be written on a sticker on the tube, but my “60 W” OMTech has what looks like a 50 W tube with narly a hint of a maximum (or even recommended) current setting.
For a genuine 100 W tube, the table in that post suggests 28 mA.
Set up a manual pulse at 50% power, fire it into a cup of water, then read the meter after a second. Double that current and you’ll know what the power supply’s maximum current is set to. If that’s around 28 mA, then you’d want to keep the power below 70% for much of your cutting. If it’s grossly higher or lower, then there are likely other issues.
Quite the contrary: you may need to throttle that puppy down.
Cutting 6 mm plywood chugs along at 6 mm/s with about 40 W from my 60 W (claimed) tube.