> We are really surprised how bad OVH does in this benchmark, they claim to have local RAID 10 storage, so it could be that they are throttling, since we can't imagine that there are that many "noisy neighbors" in two locations, but we can't say that for sure.

Your numbers match the numbers on vpsbenchmarks.com [1], so it probably is as bad as your test suggests.

[1] https://www.vpsbenchmarks.com/trials/ovh_performance_trial_1...