Drupal is becoming more and more insane with each release (especially 6 -> 7). The database structure is really getting out of hand. It's becoming harder and harder to deal with the performance issues.
Yeah... I don't know what to think about performance. We tend to be careful with page design and cache everything so once the cache is built the site flies.
But developing a drupal site is painful. Clearing the cache every few minutes takes forever.
