First of all I want to congratulate you on an excellent product. After weeks of trying to solve the TTFB issue I had (approx 1sec) I installed your plugin, stepped through the wizard and it instantly removed the delay. I am really impressed.
I currently use another plugin to preload the LCP image on my homepage but I would rather reduce the number of plugins.
Does W3 Total Cache support the preloading of the LCP image?