As I explored, simply removing access_log and error_log from nginx configuration makes the process for nginx more complicated; thus, it takes more time to complete the request. Instead, error_log should be turned off by
error_log /dev/null crit;

but how to turn off the access log?

And what is the best configuration to force nginx to conduct the main requests without dealing with side process (like creating logs). I want to compare the very basic action of nginx.