Measurement is a very important emphasis in your point. It doesn't exist if you don't measure it. So one shouldn't bother with speed unless there is a solid feedback on it.
I also agree that performance should be handled considering cumulative effects in the long run. For example, I think maintainablity is one of the greatest bottlenecks out there and I am suspicious if delivery speed (of initial code) is even a bottleneck or not.
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Measurement is a very important emphasis in your point. It doesn't exist if you don't measure it. So one shouldn't bother with speed unless there is a solid feedback on it.
I also agree that performance should be handled considering cumulative effects in the long run. For example, I think maintainablity is one of the greatest bottlenecks out there and I am suspicious if delivery speed (of initial code) is even a bottleneck or not.