improve performance on boost-capable devices

apps/plugins/varvara/varvara.c

@@ -289,6 +289,9 @@ static void run() {
 
 enum plugin_status plugin_start(const void* parameter)
 {
+	#ifdef HAVE_ADJUSTABLE_CPU_FREQ
+    	rb->cpu_boost(true);
+   	#endif
 	if(!parameter) {
 		rb->splash(HZ, "Please open a .rom file using this plugin!");
 		return PLUGIN_ERROR;