I created new azure vm for sap business one. Server has 16GB ram and and 8 core. After that I created vpn for sap vm and connect with our company via azure virtual network gateway. Every system work very well. Memory and disk usage is normal. Database health and size is very good. SAP B1 access is fast. But Sap B1 client performance terrible. Login takes more than one minute. Listing or searching of record takes more than 25 seconds. We did some test on local network and user machines they passed the local server connection performance test.
I think it is handshake or security problem of sap b1 on azure between my network. But I could not solve it.
How can I solve this problem?