How do I replace Big Grid with Big Grid Flex? I’m not quite sure how!

I have compressed and converted the image to WebP as you requested, but the detection has not improved much。
The mobile LCP time is still 5.6 seconds.
https://pagespeed.web.dev/analysis/https-yigeni-com/u5rr1dv1c4?form_factor=mobile

I’ve used Autoptimize, WP Super Cache, and Cloudflare, but not image compression! However, I’m still seeing JS and CSS issues on mobile devices, so this isn’t related to image compression! The main problem seems to be resolving the JS and CSS issues!

The desktop version is resolved, but the mobile version remains unresolved! The report is as follows:https://pagespeed.web.dev/analysis/https-www-yigeni-com/5640swrbf5?form_factor=mobile

• This reply was modified 6 months by da zuoshou.

This LCP issue has been bothering me for a month. I’ve tried CDN, image compression, caching, and so on, but the problem is still here. I’m speechless!A solution has finally been found, as shown in the image below:

• This reply was modified 6 months by da zuoshou.

ok，thank you！

https://i.postimg.cc/50CXbrht/chrome-zd-AVr7m1YU.png

Specifically, the image portion of this link loads slowly, impacting LCP. Is there a local solution available? Website: http://www.yigeni.cc

另外，https://pagespeed.web.dev/测试结果：https://pagespeed.web.dev/analysis/https-www-yigeni-cc/rpqy39js1o?form_factor=mobile

Thank you very much, it has been solved! = =