The difference between a server in Frankfurt, a server in Paris and a server somewhere in Benelux is negligible as long as it is of good quality.
From personal experience, playing from Athens, my ping hardly changes at all in any western European server, including those located in London.
AS LONG as the server is high quality. You should be fine.
I have seen everything from 50 to 90 ping all in Paris hosted servers for example. On bad servers