You realize having to write better code is a bad thing, right? It makes writing software more expensive, and decreases the supply of people who can do it.

Also, people aren't going to start valuing craftmanship because you added more constraints. Adding a speed constraint won't make the pile of hacks upon hacks smaller, it will add a layer of speed hacks. It won't fundamentally rewrite the incentives for software, where companies that do the minimum amount of work to hit an acceptable speed are rewarded. It just culls companies naive enough to think they could write something elegant or concise.