Yup, on Android devices, if you have 3 tap zoom/magnify enabled it can cause input delay. Basically the device recognizes that you have tapped once and waits a short time to see if you are going to tap again (for the zoom/magnify function) before registering the 1st tap, so there's a short delay. Not a big deal when browsing the web and using other apps but on something that requires timing like the swing meter, you would definitely see the delay.