[bkyan]

In my experience, the revision system in WordPress is not performant. The more revisions there are for a given page, the longer it takes to publish that page, eventually leading page publish requests to time out. I usually have to limit the number of per-page revisions to keep, to prevent that from happening.

[b0ner_t0ner]

Most Wordpress sites can go static (like using WP2Static), so the HTML online is always fast.

[bkyan]

The performance bottleneck with regards to revisions is on write, rather than on read.

[racked]

Only if you avoid common plugins that need some server-side interaction, for instance Gravity Forms.

(Probably _unless_ you use some custom rewrite rules, but then you're walking on less-trodden paths)