Lazysizes very CPU time consuming

Weird, as Pagespeed Insights sees under half a second total CPU time (on mobile);

But test without it and compare performance and choose based on that? ??

any news javierdemuga ?

https://web.dev/measure/ still showing lazysizes use of CPU high, PageSpeed though is fine.

https://lighthouse-dot-webdotdevsite.appspot.com//lh/html?url=https%3A%2F%2Fwww.ceroresiduo.com%2Fproducto%2Festropajo-esparto%2F

URL
Total CPU Time
Script Evaluation
Script Parse
/producto/estropajo-esparto/(www.ceroresiduo.com)
2,838 ms
347 ms
33 ms
…js/autoptimize_93045f8….js(www.ceroresiduo.com)
2,717 ms
1,037 ms
1,172 ms
…js/lazysizes.min.js?ao_version=2.8.1(www.ceroresiduo.com)
2,168 ms
151 ms
5 ms

I’m afraid I have absolutely no idea why web.dev/measure would flag lazysizes vs pagespeed not doing so Javier, both use Lighthouse under the hood after all ..

Maybe ask the question on the lazysizes Github project (AO integrates lazysizes, but it’s 3rd party code)?