Edit File: settings.media_webp.tpl.php
<?php namespace LiteSpeed; defined( 'WPINC' ) || exit; ?> <tr> <th> <?php $id = Base::O_IMG_OPTM_WEBP_REPLACE; ?> <?php $this->title( $id ); ?> </th> <td> <?php $this->build_switch( $id ); ?> <div class="litespeed-desc"> <?php echo sprintf( __( 'Significantly improve load time by replacing images with their optimized %s versions.', 'litespeed-cache' ), '.webp' ); ?> <br /><?php Doc::notice_htaccess(); ?> </div> </td> </tr>