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[_r.u.s.s.]

the static ip does not have to do anything with it.

it may be better for you because of your router autoconfig (if you do have one), but even that can be set properly in your router control panel. ip by itself does not affect speed or anything, it's the matter of port forwarding and how do you solve it

in short- it's for people who can't setup their router port forwarding properly