Please check this link. https://superblog.ai/docs/why-is-the-performance-score-low-in-lighthouse-audit

We have checked this. TTFB is very low which means our proxy is not a problem. We have no custom JS or widgets added and we have also done the speed analysis multiple times from multiple devices. Attaching screenshot for one of the blog pages speed anlaysis and most of the issues and diagnostics are around improving image delivery, using efficient cache lifetimes, reducing unused JS/CSS - none of this is what we are able to control. Especially the LCP is at 9.1 seconds which is quite strangely high. Attaching screenshots - please suggest what can be done to improve this please.