VDS (windows server 2019): different web servers - same problem

Job ID: 30816971

Budget: $10 – $30 USD

On my VDS (windows server 2019) i tried to install different Web Servers: apache, ngnix, abyss, iis. All of them can't handle traffic to sites.
Under load, under traffic, sites slow down for 5-10 seconds or don't load at all
i want you to fix this problem or suggest an alternative of web server
the result should be like this: instant load - about 50 miliseconds under traffic without lags.
Related categories: Apache Website Testing IIS MySQL Windows Server