diff --git a/plugins/woocommerce-admin/client/customize-store/design-without-ai/services.ts b/plugins/woocommerce-admin/client/customize-store/design-without-ai/services.ts
index e7b029f19e3..d7ae142e0c3 100644
--- a/plugins/woocommerce-admin/client/customize-store/design-without-ai/services.ts
+++ b/plugins/woocommerce-admin/client/customize-store/design-without-ai/services.ts
@@ -63,6 +63,11 @@ const installAndActivateTheme = async () => {
 };
 
 const installFontFamilies = async () => {
+	const isTrackingEnabled = window.wcTracks?.isEnabled || false;
+	if ( ! isTrackingEnabled ) {
+		return;
+	}
+
 	try {
 		const installedFontFamily = ( await resolveSelect(
 			'core'
diff --git a/plugins/woocommerce-admin/client/customize-store/intro/services.ts b/plugins/woocommerce-admin/client/customize-store/intro/services.ts
index e8e74ef00c3..950cdcc4425 100644
--- a/plugins/woocommerce-admin/client/customize-store/intro/services.ts
+++ b/plugins/woocommerce-admin/client/customize-store/intro/services.ts
@@ -115,7 +115,7 @@ export const fetchIntroData = async () => {
 const fetchIsFontLibraryAvailable = async () => {
 	try {
 		await apiFetch( {
-			path: '/wp/v2/font-collections',
+			path: '/wp/v2/font-collections?_fields=slug',
 			method: 'GET',
 		} );
 
diff --git a/plugins/woocommerce/changelog/44552-cys-core-ensure-that-fonts-arent-installed-on-the-cys-loading-screen-when-the-user-did-not-opt-in b/plugins/woocommerce/changelog/44552-cys-core-ensure-that-fonts-arent-installed-on-the-cys-loading-screen-when-the-user-did-not-opt-in
new file mode 100644
index 00000000000..8063a0a8ca1
--- /dev/null
+++ b/plugins/woocommerce/changelog/44552-cys-core-ensure-that-fonts-arent-installed-on-the-cys-loading-screen-when-the-user-did-not-opt-in
@@ -0,0 +1,4 @@
+Significance: minor
+Type: fix
+
+CYS - Core: install fonts only when the tracking is enabled