Don't like blurs? Can't read thin text? Want all that parallax stuff to just STOP ALREADY? Here's a guide to tweaking just about everything in iOS 9.

Whether it's lower-case keyboards, whooshing apps, accidental Slide Over swipes, or unreadable text, iOS 9 has some visuals that can be less than pleasant. Here's everything you need to know about tweaking, turning off, or otherwise disabling certain aspects of the iOS interface.

Visual tweaks

Getting a headache from iOS 9's visuals? Here are the settings you may want to take a gander at.

How to make text bigger and bolder

Are your aching eyes struggling to read the iOS 9 system font? You can make your text both bigger and bolder via Settings > General > Accessibility.

To embiggen text, tap Larger Text > Larger Accessibility Sizes and move the slider until you're satisfied. If it's bold text you want, tap the toggle next to Bold Text. (Warning: You may be asked to reboot your device for this to take effect.)

How to make text buttons into real buttons

With iOS 7, Apple moved away from bubbly buttons to flat, text-only links. If that confuses your brain, you can turn on Button Shapes by going to Settings > General > Accessibility and turning the Button Shapes toggle on.

You can also add texture to those toggles (to better know whether they're on or off) by going to Settings > General > Accessibility and turning on the On/Off Labels toggle.

How to darken link colors and reduce transparency

If you're not a huge fan of iOS's bright blue and red link button colors, you can mute them somewhat with the Darken Colors toggle, found inside Settings > General > Accessibility > Increase Contrast. You can also use Reduce White Pont—also in that Settings screen—to dim whites and bright colors across the board.

If it's not so much colors you're against as iOS 9's tendency toward transparent backgrounds, you can flatten those colors by flipping on the Reduce Transparency toggle.

How to turn off parallax and app zooms

Does iOS 9's app zooms, parallax wallpapers, and bouncing multitasking bar make you feel a little seasick? You're not alone: When these new animations came out in iOS 8, quite a few people rushed to the Settings app to disable them. You can do the same in iOS 9 by going to Settings > General > Accessibility > Reduce Motion and turning on the Reduce Motion toggle: This will change all animations to a graceful fade, and turn off the parallax motion applied to icons and wallpaper.

How to turn off the lower-case keyboard and reenable character previews

In iOS 9, Apple again attempted to fix confusion around the Shift key with a UI move: This time around, disabling the shift key swaps your uppercase letters to lowercase versions. If the switch between uppercase and lowercase letters is making your head spin, you don't have to stick with it: Just turn off the switch under Settings > General > Accessibility > Keyboard > Show Lowercase Keys.

Be aware, however, that once the switch is disabled, you're back to the iOS 8 keyboard—and all the shift-key confusion inherent within.

iOS 9 has also done away with key previews: Previously, when you pressed a key on your iPhone or iPad, you could see a larger version of it hover atop the keyboard. To reenable this feature on the iPhone, turn on the Character Preview toggle under Settings > General > Keyboard.

Touch-based tweaks

Having trouble with your iPhone or iPad's multitouch gestures? See if any of these tweaks ease your pain.

How to turn off Reachability

Reachability is a feature on the iPhone 6, 6s, and their respective Plus models that lets you double-tap the Home button to bring the top of the screen down so that you might more easily access it with a thumb.

If you find yourself never using Reachability, however, or you keep triggering it accidentally, you can disable it by going to Settings > General > Accessibility and flipping the Reachability toggle off.

Stop manually triggering Apple Pay

As of iOS 9, you can double-press the Home button on the Lock screen to trigger Apple Pay, rather than just letting a nearby NFC reader bring it up.

If you'd prefer to keep this setting off, just go to Settings > Touch ID & Passcode, enter in your passcode, and turn off the Wallet toggle under Allow access when locked.

Kill "Shake to Undo"

For many years, "Shake to Undo" was the quickest way to undo a line of text—and throw your iPhone across the room in the process. If you'd prefer to ignore this accelerometer-based feature, just go to Settings > General > Accessibility and turn off the Shake to Undo toggle.

How to turn off the split keyboard

Another Reachability-like feature came in iOS 8 for the iPad: the split keyboard. This triggers when you use a reverse-pinch to pull apart the two sides of the keyboard, gluing each to one side of the screen.

In theory, this makes for better typing, but if you find this gesture interfering with the two-finger keyboard trackpad, you can disable it by going to Settings > General > Keyboards and turning off the Split Keyboard toggle.

How to disable Slide Over and Split View

Don't want to use the iPad's multiple-app multitasking? You can turn it off by going to Settings > General > Multitasking on your iPad and toggling off the Allow Multiple Apps setting.

How to keep Picture-in-Picture from activating automatically

iOS 9's picture-in-picture is pretty great for watching video in the background while you work in other apps.

Normally, you can either activate PiP by tapping the PiP icon or by pressing on the Home button; if you'd prefer to only activate it by tapping PiP and have videos pause when you use the Home button, go to Settings > General > Multitasking and turn off Persistent Video Overlay.

How to turn off multitasking gestures

If it's three- and four-finger gestures that are getting you down, you can disable them from Settings > General > Multitasking. Tap the toggle for Gestures to turn them off and limit your iPad to one- and two-finger expressions.

Remove Control Center from the Lock screen and apps

Don't want to accidentally trigger Control Center in an app or while your iPhone or iPad is locked? You can turn both options off from Settings > Control Center.

To disable Lock screen access, tap the Access on Lock Screen toggle; to turn off in-app access, switch the Access Within Apps toggle off.

Audio and information tweaks

Noises getting you down? Here's how to turn off (or change) most audio alerts from your iPhone or iPad.

Prevent Lock sounds and keyboard clicks

By default, iPhones and iPads chirp at you whenever you lock, unlock, or type on them. You can turn this off by going into Settings > Sounds and turning the Lock Sounds and Keyboard Clicks options off.

Change your Maps navigation volume

Want to make sure you can always understand the Maps app when it's giving directions? Or, alternatively, do you hate hearing navigation? You can set your voice preferences (from No Voice all the way to Loud Volume) within Settings > Maps.

Keep Siri from talking to you

Does Siri pipe up too much for its own good? You can turn off both "Hey Siri" and audible voice feedback from the Settings screen.

To disable Hey Siri, go to Settings > General > Siri and toggle the Allow "Hey Siri" switch to Off. This will keep Siri from automatically triggering if it thinks you've said "Hey Siri" while your device was plugged in.

If you like Siri but prefer that you be the only talker in this relationship, you can also disable Siri's voice feedback so that it only triggers when your mute switch is off or when you're connected to a Bluetooth Hands-Free stereo or headset.

To change Siri's vocal responsiveness, go to Settings > General > Siri > Voice Feedback and choose either Control with Ring Switch (Siri only speaks aloud when not muted or on Bluetooth connection) or Hands-Free Only (Siri only speaks aloud when connected to Bluetooth).

Turn off Search Suggestions and Lock Screen suggestions

Don't want to hear about the latest news, or get Contacts and App suggestions when you swipe down or right for the Search screen? You can disable these options and leave your screen clutter-free by going to Settings > General > Spotlight Search and disabling Siri Suggestions.

If you don't want Siri to proactively suggest apps for you to launch on the Lock screen (shown with a little app icon in the bottom left corner of the screen), you can disable this by going to Settings > General > Handoff & Suggested Apps and turning off the Installed Apps toggle.

Stop calls from automatically going to Bluetooth

Do you have a terrible car stereo or a malfunctioning Bluetooth headset? You can set your iPhone to always manually route calls solely to your speaker, or always to a Bluetooth headset (when connected).

To do this, go to Settings > General > Accessibility > Call Audio Routing and choose either Bluetooth Headset or Speaker.

Other settings you want disabled?

Anything else you can't figure out how to tweak? Let us know in the comments, or hop on over to the forums for some help.