Why does Drupal run slow on localhost wamp? I'm using an i3 8GB RAM computer and Drupal is as slow as like using some cheap hosting provider.

So what could it be? I am using a freshly installed version of D7 and just browsing through site, going to Reports takes some time and I am not even talking about clearing cache or running cron.

Also using Drush via Git Bash also runs commands slow, like simply 'drush dl libraries' and then enabling it takes like 10 seconds and I am on 100MBit line.

I did some changes to php.ini file like memory_limit = 2G and etc. but it's as slow as if it was 128M.
Installed Acquia Dev Desktop, runs smooth ant fast. Wamp is not production system.