A temporarily solution is following code to your theme's functions.php:

function_exists( 'is_amp_endpoint' ) && is_amp_endpoint() && ! defined( 'LITESPEED_NO_LAZY' ) && define( 'LITESPEED_NO_LAZY', true ) ;

And then purge cache, this should disable lazy load on AMP pages.

Permanent solution will be integrated into LSCWP v3.0, please update it once when it releases.