fix performance regressions for non-offloaded urls

Author: selul

inc/app_replacer.php

@@ -59,6 +59,12 @@ abstract class Optml_App_Replacer {
 	 * @var Optml_Settings $settings
 	 */
 	public $settings = null;
+	/**
+	 * Cached offloading status.
+	 *
+	 * @var null|bool Offload status.
+	 */
+	public static $offload_enabled = null;
 	/**
 	 * Defines if the dimensions should be limited when images are served.
 	 *
@@ -356,6 +362,9 @@ function ( $strings = [] ) {
 			},
 			10
 		);
+		if ( self::$offload_enabled === null ) {
+			self::$offload_enabled = ( new Optml_Settings() )->is_offload_enabled();
+		}
 	}
 
 

inc/url_replacer.php

@@ -383,6 +383,9 @@ private function is_dam_url( $url ) {
 	private function is_offloaded_url( $source_url ) {
 		$attachment_id = 0;
 
+		if ( ! self::$offload_enabled ) {
+			return 0;
+		}
 		if ( strpos( $source_url, Optml_Media_Offload::KEYS['not_processed_flag'] ) !== false ) {
 			$attachment_id = (int) Optml_Media_Offload::get_attachment_id_from_url( $source_url );
 		} else {