Please check out a new blog post I created detailing how SQL Server 2017 is Fast, Built-In. Faster than you think running on Linux, using Columnstore, and with right features and configuration. How we keep you fast and tuned with Adaptive Query Processing and Automatic Tuning. And we are the fastest database everywhere you need it: On the planet or in the cloud.
Look for more details on my blog post and the SQL Server Blog about some of these concepts and new features for performance for SQL Server 2017.
I just presented on this topic at Ignite and will repeat this same session at the upcoming SQL 2017 PASS Summit. Hope to see you there.