diff --git a/cores/libretro-net-retropad/net_retropad_core.c b/cores/libretro-net-retropad/net_retropad_core.c
index 448b5e9825..200326073e 100644
--- a/cores/libretro-net-retropad/net_retropad_core.c
+++ b/cores/libretro-net-retropad/net_retropad_core.c
@@ -227,6 +227,8 @@ void NETRETROPAD_CORE_PREFIX(retro_run)(void)
    for (i = 0; i < 320 * 240; i++)
       frame_buf[i] = 4 << 5;
    NETRETROPAD_CORE_PREFIX(video_cb)(frame_buf, 320, 240, 640);
+
+   retro_sleep(4);
 }
 
 bool NETRETROPAD_CORE_PREFIX(retro_load_game)(const struct retro_game_info *info)