Two diffrent razer mouses same DPI way diffrent sensitivity

I have a razer basilisk V3 and a basilisk x hyperspeed the v3 is way slower then then the x hyperspeed even when on the same Dpi the diffrnce is like crazy even when I had the hyperspeed on 150 dpi and the v3 on 200 the hyperspeed was still a faster sense the diffrence is outrageous I don't understand