it turns out that my laptop had windows and I decided to put linux, specifically Elementary OS.

Even though everything is fine, WiFi does not. The speed is much slower, I have 60mb and in windows I reached 60mb.

Sometimes I have 40-50mb, other times it does not reach 10mb and other times I do not even have wifi, while on my other computer I have the exact 60mb. We do not talk about days, this happens all the time.

I tried everything, install Ubuntu, Deepin, follow internet guides that are useless, but I could not fix it. What can happen?