If you want subtler animations across iOS, you can enable the Reduce Motion setting. To do this, go to Settings > ...

These little-known iPhone settings allow apps to collect, track and share your data. Here's how you can turn them off to make sure your private information is always protected.

Turn off all options, including Share iPhone Analytics and Share iCloud Analytics This reduces the amount of diagnostic and usage data sent to Apple and third-party developers 5.

By default, your iPhone has Always-On Display turned on. It's pretty useful but it can drain the battery even when you're not using your iPhone.