"Lightning Network promises to enable millions of transactions per second using a peer to peer network atop the Bitcoin blockchain. This is (will be) the fastest financial transaction network in the world, even compared to competing blockchain technologies, like Ethereum's 15 tps, Ripple's 1,500 tps, or the newly launched EOS with a maximum of 8,000 tps."
Source: https://goo.gl/FfQNN6
Why couldn't they all just work together :)
But anyway - I believe that LN is the answer.
RE: Ethereum Roadmap