I have installed this theme on my client host-
https://themeforest.net/item/megatron-megaflexible-responsive-magento-theme/8177432
Now he wants better page loading speed and for this i want to use lazy load script (blazy.js) for images-
So i need to update image tag code on homepage where owl carousel working-
in this 1st screenshot you can see there
Template:frontend/megatron/default/template/carousel/products_horizontal.phtml
so in this template i found a function which showing product images-
drawProductPreview() function called from helper
check 2nd screenshot-
So for edit this function i opened
\app\code\local\Etheme\Megatronconfig\Helper\Data.php
and there i edit this function and add attributes on image tag for b-lazy loading
and save everything and flush all type of cache like- magento cache and storage cache
more images i added these image attributes-
Frontend source code screenshot-
but on frontend nothing change...i dont know what i do?
please help me 