It's 2020 wake up.
Newest wireless gaming mouses don't have more delay than wired mouses.
You don't have to change batteries, only charge it via usb cable (48h battery life, meaning that it will last at least couple of weeks) (G Pro Wireless).
Wired really isn't more consistent, since there isn't really any difference. Sometimes wired can be more inconsistent, because wire can get fucked up like in older Razer mouses (wire isn't straight). Also wire can get in your way and fuck you up.
There is upsides of buying wireless = wire doesn't get in your way, no need for mouse bungee, more free to move.
Only reason why "most" pros use wired is because they are used to those mouses. Shape and size are the most important parts when we are talking about mouses.
CSGO: GPW is 2nd most used
OW: GPW is most used
R6S: GPW is most used
Fortnite: GPW is most used
Apex Legends: GPW is most used
(according to Pro Settings)