In my experience it doesn't get prioritized. I worked on a product where everyone including product management complained about performance but it always took v

In my experience it doesn't get prioritized. I worked on a product where everyone including product management complained about performance but it always took very long to get fixing that prioritized. In one case I spent my weekend adding pagination to some pages that everyone had been complaining about being slow but no one thought should be a priority to fix over new features.