Permalinks Issue - Categories slash Postname is bad for Performance


I have a slight issue. Perhaps the collective knowledge here could help. Many thanks in advance!

According to this post

and the Wordpress site itself, you should not use /%category%/%postname%/ or /%postname%/ as it creates a giant lookup table and degrades wordpress performance.

I have this problem:

I have two blogs running on the same domain install. I do not want to use a new blog (sub domain or sub dir). I simply want the category permalink to separate them.

The two blogs (currently):

- (How to Social Commerce)

- (State of the Tradrsphere)

Can the two blogs run like this?



and not degrade performance?