I just got new VPS for 8 GB & too much HDD even fastest net speed.

Speed test of server is ,
600 MB download / Second & 
400 MB Uploading  / Second 

I had install ODOO, but even it works very very very slow. ????

With SSL it become too much slow ?

All pings and other tests works fine, just odoo making hell in the performance. 

I had only one user on ODOO instance, even it slow ????

Please share performance enhanment steps.