Not fully engraved Longer ray 5 10w

Hello everyone, I wanted to engrave a dog tag for my dog, the material is matt stainless steel, which also worked well with the settings 450 speed and 100 power. in addition, I set the power on my Ray5 to 120. Now it’s just that the lower start is not engraved properly but remains rather light. what could be the reason for this? would it help to make a 2nd pass?