Bring back the filtering of member by role for big server

I know by the support that the result of the member list with a role filter in the server with over 800 member is curb for the stability of the application. I understand that is the easiest way to do but for the admin it's a real ordeal.

It's in this server that we most need this kind of filtering and curb it it's not a good idea I think. Instead maybe you can add an option for choose how many people you want to see because when you have 105 people with a role and you can only see 5 with the filter it's disabling.