In that case it's conceivable that one of the other mirrors would do better. Not because they're geographically closer or have more bandwidth or anything like that, but just because Cloudflare is a well-known entity and @NiLuJe's server probably isn't. Then again, you said the French one was pretty slow and it gives me 80+ Mbit…
(Well, only 10 Mbit or so on my H2O of course but that's simply its speed limit.)