Nice work @housseindjirdeh! Love to see deeper analysis into JS frameworks.
Haven’t double checked but IIRC the result is a comma-separated list of frameworks, so unless you’re splitting by a comma you’re not getting all of the sites with each framework but rather the sites with only those frameworks. Probably not a huge deal since most sites wouldn’t have more than one framework (or so you’d hope) but that may account for the Zonejs thing.
I would also caution against reading too much into loading speed metrics here. HTTP Archive is a synthetic dataset so the performance data may or may not be representative of real user experiences. THAT SAID, there are exciting possibilities when we join it with the Chrome UX Report, which does have FP, FCP, and FID distributions from real users. See CMS Performance for an example of analysis that joins the datasets.