the R1 Pro has a nore up to date mouse sensor for better response times. but considering you're not playing competitive games, the Se+ should be just fine.
[Comparison](https://www.eloshapes.com/mouse/compare?p=razer-viper-ultimate-vs.-vxe-r1-pro) as the shapes might look similar it will feel a bit different with back centric hump. But generally, it's not a bad choice. I am using the SE model and it is good for its money and for just that little bit more you are getting the proper sensor and more battery life.
Vxe r1 the lower variant go for under 2.5 k and its the best mouse i have had, i have owned Logitech 304, razer death adder v2x hyper speed and viper mini. Currently using vxe r1 pro i would recommend
The ATK VXE Dragonfly R1 SE+ is around 27$ on amazon, and meets all of your requirements and has a dpi button on the bottom of the mouse instead of the top so you wont clumsily hit it AND it allows you to change your dpi without software which was apart of your requirements, you can also go for a slightly pricier option of it if you're afraid of longevity in switches or the scroll wheel.
Top Gaming Mice on Reddit
1
Logitech G
G600 MMO Gaming Mouse
73% positive of 688 users
Customizable MMO workhorse, durable, but discontinued and pricey.
DocchiIWNL
