[mr__y]

>Most enterprises want to focus on developer productivity

While I absolutely agree, it all depends on a scale. If you're using for example 10 cloud instances, x2 performance improvement will not justify extra person-months spent on developing more performant solution. On the other hand if you run 1000000 servers even 1% performance boost might be worth that effort.

[littlestymaar]

There's a additional point: on 4 cloud instances, a x5 performance improvement means you have only one machine to manage instead of several, and then your ops costs are way smaller.

There's a big number of companies who have between 4 and 20 machines for serving Python, Node or PHP apps and spend a lot of efforts managing them with overkill solutions like kubernetes or whatever when it could be a single machine or two using more frugal languages.