Shared Hosting issue with TTFB
So i have a shared hosting for WooCommerce and currently facing issue for LCP. I have done all the required steps like LightSpeed cache Object cache, Cloudflare integration, optimized the images ,preload the LCP image, preload the fonts, minify Non critical CSS and JS. Even after doing these thing there is issue of LCP. When i check in performance tab of dev tool it shows that LCP is preloaded at early stage but the there is delay of approx. 1-1.5sec from server and makes the main thread busy and LCP shoots to 5sec on mobile. I even disabled few cron jobs but still there is issue. Cloudflare origin analysis shows that there is issue at the origin meaning at hostinger. Issue is that their human support is not responsive and no support ticket is getting created.
Issue is that the resource usage also doesn't show any spike.
This has heavily impacted my meta ads LPV which is under 15%.
What will be the exact solution to this? Should i switch to another hosting or upgrade to VPS