dpi (dots per inch) is the number of dots (not pixels) per inch that your mouse sees on your monitor. For comfortable operation on a Full-HD monitor, 3500 - 4000 dpi is required. Why, then, in the top mouse embed sensors at 8200 dpi? For games like Conter-Strike, where reaction speed and accuracy are important. But even there, 8200 is overkill, 6000 to 6500 is enough, everything above is mostly marketing. A large resolution of the sensor is needed only for shooters, for a MOBA and MMORPG games, a more modest one is enough. However, if you have a 4k or Retina monitor, then for you this resolution may even be small
Mice are divided into two main types: symmetrical and asymmetrical. Mice of the first type are suitable for both right-handers and left-handers, and the second one - only for right-handers. However, most mice for MMO games (such as the Razer https://www.bestadvisor.com/best-gaming-mouse) are symmetric.
We should also highlight the mouse transformers. Some, such as the Razer, can be both symmetrical and asymmetrical due to removable side panels. And some, such as Cyborg, can only be asymmetric, but provide more opportunities for customization. However, these are not all the differences between transformer mice! They are often governed by almost everything - from the aforementioned side panels to the weight.
Also, when choosing a mouse, you should pay attention to the speed of response - it should be no more than 2-3 milliseconds. You should also pay attention to the type of sensor - almost all gaming mice are equipped with laser sensors that provide greater accuracy than optical ones, but behave incorrectly without a rug, unlike optical ones, which practically do not care on which surface to work. However, now there are compromise solutions with dual sensors.
The maximum acceleration of the mouse is the limit after which it ceases to distinguish the surface beneath.