This is super interesting. Are you familiar with Yottaa? (https://wwww.yottaa.com). I worked there briefly and there basically isn’t competition outside some CDN script “optimizers”, but none of them really help Core Web Vitals, which seems to be all e-commerce cares about these days. Sounds like your solution does.
Cheap food might be the biggest issue you sort of glossed over. Cheap because the US government heavily subsidizes wheat and corn. So we have chips, sugar, sugary stuff galore ... it’s cheap. One could argue it starts there.
I work for a company that optimizes page load times via a js library. We target mainly e-commerce. It’s crazy to learn how much money e-commerce will spend to improve website speed knowing it has a lift on their conversion rate.
With googles page speed insights / lighthouse gaining popularity (mainly just because its google and not much else), there is definitely opportunity to focus on just improving those results and be paid very well.
the load/onload/document complete event is very mature with studies correlating conversion rate. I don’t believe googles “web vitals” have been tied to any meaningful business metrics... yet.