Hey Again,

This might help: https://docs.woocommerce.com/document/fixing-blurry-product-images/#section-5 . 

The Salient Theme creates these image sizes only "salient\nectar\helpers\media.php"

if ( ! function_exists( 'nectar_add_image_sizes' ) ) {
    function nectar_add_image_sizes() {
        add_image_size( 'portfolio-thumb_large', 900, 604, true );
        add_image_size( 'portfolio-thumb', 600, 403, true );
        add_image_size( 'portfolio-thumb_small', 400, 269, true );
        add_image_size( 'portfolio-widget', 100, 100, true );
        add_image_size( 'nectar_small_square', 140, 140, true );
        global $nectar_options;
        $masonry_sizing_type = ( ! empty( $nectar_options['portfolio_masonry_grid_sizing'] ) && $nectar_options['portfolio_masonry_grid_sizing'] === 'photography' ) ? 'photography' : 'default';
        if ( $masonry_sizing_type !== 'photography' ) {
            
            add_image_size( 'wide', 1000, 500, true );
            add_image_size( 'wide_small', 670, 335, true );
            add_image_size( 'regular', 500, 500, true );
            add_image_size( 'regular_small', 350, 350, true );
            add_image_size( 'tall', 500, 1000, true );
            add_image_size( 'wide_tall', 1000, 1000, true );
            add_image_size( 'wide_photography', 900, 600, true );
        } else {
            
            // These three are still needed for meta overlaid masonry blog.
            add_image_size( 'regular', 500, 500, true );
            add_image_size( 'regular_small', 350, 350, true );
            add_image_size( 'wide_tall', 1000, 1000, true );
            add_image_size( 'wide_photography', 900, 600, true );
            add_image_size( 'wide_photography_small', 675, 450, true );
            add_image_size( 'regular_photography', 450, 600, true );
            add_image_size( 'regular_photography_small', 350, 467, true );
            add_image_size( 'wide_tall_photography', 900, 1200, true );
        }
        add_image_size( 'large_featured', 1870, 770, true );
        add_image_size( 'medium_featured', 800, 800, true );
    }
}
add_action( 'after_setup_theme', 'nectar_add_image_sizes' );

Thanks