diff --git a/modules/shortcodes/js/slideshow-shortcode.js b/modules/shortcodes/js/slideshow-shortcode.js
index e9ef1b8d53613..e17a2d748d215 100644
--- a/modules/shortcodes/js/slideshow-shortcode.js
+++ b/modules/shortcodes/js/slideshow-shortcode.js
@@ -96,7 +96,7 @@ JetpackSlideshow.prototype.finishInit_ = function() {
 			fx: this.transition,
 			prev: this.controls.prev,
 			next: this.controls.next,
-			speed: jetpackSlideshowSettings.speed,
+			timeout: jetpackSlideshowSettings.speed,
 			slideExpr: '.slideshow-slide',
 			onPrevNextEvent: function() {
 				return self.onCyclePrevNextClick_.apply( self, arguments );
diff --git a/modules/shortcodes/slideshow.php b/modules/shortcodes/slideshow.php
index 62a8f55f50a8d..3aa0ac5c168e0 100644
--- a/modules/shortcodes/slideshow.php
+++ b/modules/shortcodes/slideshow.php
@@ -290,11 +290,11 @@ function enqueue_scripts() {
 			 *
 			 * @param array $args
 			 * - string - spinner - URL of the spinner image.
-			 * - string - speed   - Speed of the slideshow. Defaults to 1000.
+			 * - string - speed   - Speed of the slideshow. Defaults to 4000.
 			 */
 			apply_filters( 'jetpack_js_slideshow_settings', array(
 				'spinner' => plugins_url( '/img/slideshow-loader.gif', __FILE__ ),
-				'speed'   => '1000',
+				'speed'   => '4000',
 			) )
 		);
 	}