Other administrator has upgraded his customer to Server 2016 with an HP Server and had a lot of problems with the performance. Not solved since months ago.
To avoid this we install for other customer a beast of machine mounted by us.

The result is a machine that is sleeping under 30% of CPU, memory.... but slow working with:
Dataflex 17.0
Native DB
Only local or TS sessions

Not too much slow, but cause the machine is great. 10 seconds to save an invoice. Customer asking how is running so slow with a new server.
Walking around the Microsoft forums... nothing of interest about. Only lot of messages about slow SQL in 2016.

Ideas ?

Javier