I have a website which is mainly built on a combination of Helix Ultimate and SP Page Builder. (www.deijsmannetjes.nl)
I have problems getting the mobile performance of the site (as measured with Lightspeed) right. The LCP is always too high.
I did some tests and it seems that the problem is Helix Ultimate. I have 2 test pages on my website (https://www.deijsmannetjes.nl/test1 and https://www.deijsmannetjes.nl/test). Both are idential and only contain 1 mage and the menu. For 1 I am using Helix ultimate, for the other the standard Casseopia template that is included in Joomla.
The mobile performance of the Casseopia page is typically 86, with an LCP time of 2.5 seconds. The performance of the Helix page is typically 66, with an LCP time of 5.6 seconds!!
Is Helix soo slow, or am I doing something wrong?