Windows Server 2016 Slow, Poor RDS performance

We have slow problems in using a 2016 server (vmware virtual).
The server (300 GB disks, 16 GB RAM, 4 core) is used in terminal mode to use Office programs (Word, Outlook, Excel) and to surf the Internet. How can you improve the use of the terminal server?

The users said that the using is very slow!

Can someone help me?

Please help.
Thanks!

I didn't find the right solution from the Internet.

References https://social.technet.microsoft.com/Forums/windowsserver/en-US/42bca5b2-eb04-40b0-ad6c-587aff73eba6/windows-server-2016-slow-rds-poor-performance?forum=winserverTS

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