Application on different dedicated server, DB on AWS

Can you please suggest what should I do to improve speed of website. SQL configuration SQL Server Web Edition 13.00.4466.4.v1 Storage: 80 GB Instance class: db.r4.large N California. Application server 10 GB ram Windows Server 2008 R2 USA – colorado state. What is the best way to configure so¬†…

Windows 2008 VPS via Application on different dedicated server, DB on AWS.