How to fix slow Internet browsing on Apple iPhone X after iOS 11.4 update

This might be a small network issue that can be remedied by restarting your iPhone X's Wi-Fi connections. Turning Wi-Fi off and on quickly is the easiest approach you can attempt. This clears any odd malfunctions on the Wi-Fi network and refreshes your device's Internet connection. Then here's what you should do:

1. Go to the Settings tab.
2. Select Wi-Fi.
3. To turn off Wi-Fi, tap the switch. To turn Wi-Fi back on, press the switch after a few seconds.