Hi there,
Google Console reports are based on accumulative data over a long period around 28 days. Therefore any changes / improvements made to your site will not be immediately updated.
If you run a page speed insight test on one of your posts you will see under Lab Data the CLS is 0
You will also see that you have a very long FCP time.
Run a GT Metrix report on the site and check the Waterfall report what you will see is there a long waiting time on your network requests. You should speak to your host about reducing that time. Any improvements made to FCP will improve LCP.