Exactly. Mechanical keyboards has faster response and mouse u can set up as well. As example, reaction is faster and shots are faster. I did used before for a very long time cheap mouses and if there is no difference, no one would pay 60-70$ more for something that is not really changing anything (starting from myself). Thats why i mentioned it here to see is it really changing gameplay and if it is, on what way. Might someone wants to try my sensitivity and see is that fits for him/her, since I did struggle a lot to find a right one for myself. And it was a point, but since Andrea said it, it can't be correct no matter what.
In title i put it's from my own gameplay and I cover some basics, added gifs to make it more interesting and actually spent time on it. Not saying it's the best guide u will ever see, it's just a bit different guide which follows my way of playing FFT.
No one is forced to read, it's on forum for ppl who wants to read game stuff, no to throw hate just because I wrote it. Cheers.