Increase submenu transition speed.

spearhead/assets/sass/navigation.scss

@@ -25,9 +25,10 @@ $navigation-max-break-point: 'laptop-only';
 		}
 	}
 
-	.sub-menu {
+	& div ul > li > .sub-menu {
 		@include media( $navigation-min-break-point ) {
 			padding: calc(0.5 * var(--primary-nav--padding)) calc( 2 * var(--primary-nav--padding) );
+			transition: all 0.15s ease;
 
 			> .menu-item.menu-item-has-children {
 				padding: calc(0.5 * var(--primary-nav--padding)) calc( 2 * var(--primary-nav--padding) ) 0 0;

spearhead/navigation-rtl.css

@@ -541,12 +541,13 @@
 }
 
 @media only screen and (min-width: 830px) {
-	.primary-navigation .sub-menu,
-	.woo-navigation .sub-menu {
+	.primary-navigation div ul > li > .sub-menu,
+	.woo-navigation div ul > li > .sub-menu {
 		padding: calc(0.5 * var(--primary-nav--padding)) calc( 2 * var(--primary-nav--padding));
+		transition: all 0.15s ease;
 	}
-	.primary-navigation .sub-menu > .menu-item.menu-item-has-children,
-	.woo-navigation .sub-menu > .menu-item.menu-item-has-children {
+	.primary-navigation div ul > li > .sub-menu > .menu-item.menu-item-has-children,
+	.woo-navigation div ul > li > .sub-menu > .menu-item.menu-item-has-children {
 		padding: calc(0.5 * var(--primary-nav--padding)) 0 0 calc( 2 * var(--primary-nav--padding));
 	}
 }

spearhead/navigation.css

@@ -541,12 +541,13 @@
 }
 
 @media only screen and (min-width: 830px) {
-	.primary-navigation .sub-menu,
-	.woo-navigation .sub-menu {
+	.primary-navigation div ul > li > .sub-menu,
+	.woo-navigation div ul > li > .sub-menu {
 		padding: calc(0.5 * var(--primary-nav--padding)) calc( 2 * var(--primary-nav--padding));
+		transition: all 0.15s ease;
 	}
-	.primary-navigation .sub-menu > .menu-item.menu-item-has-children,
-	.woo-navigation .sub-menu > .menu-item.menu-item-has-children {
+	.primary-navigation div ul > li > .sub-menu > .menu-item.menu-item-has-children,
+	.woo-navigation div ul > li > .sub-menu > .menu-item.menu-item-has-children {
 		padding: calc(0.5 * var(--primary-nav--padding)) calc( 2 * var(--primary-nav--padding)) 0 0;
 	}
 }