The higher the resolution you choose, the more time it will take to laser engrave.
You can save time if you pick a different resolution. For example, if you are doing a large-scale engraving, you could pick a lower resolution and then use a higher Z-offset value to accomodate the resultant line spacing.
Consistent engraving result - 1/4 of the original processing time
View our sample to see how the same image can be engraved at 500dpi with the same result as 125 dpi in only a quarter of the time: