What is MIUI Optimization on Xiaomi Phones?

Hey there! If you have a Xiaomi phone, you might have already been familiar with the term MIUI optimization.

If you are curious to know what’s MIUI optimization on Xiaomi phones, then you are on the right post to get all the necessary and related details regarding MIUI optimization.

Also, should you turn it on or turn it off, you are going to know all these things right here in this blog post.

So, without further ado, let’s dive in to explore it more.

What is MIUI?

As you know, Android is an open-source operating system for smartphones. So, companies like Samsung, Asus, etc used to give a unique visual representation to their phones, which is known as “user interface” aka UI.

Also, with that, we can easily identify just looking at the UI which brand’s phone it is. Just like OneUI for Samsung phones and ZenUI for Asus phones.

In Xiaomi phones, the UI is simply known as MIUI. And MIUI is the most popular UI out there in the Android UI industry with its amazing looks as well as incredible features.

What is MIUI optimization?

Most phone manufacturing companies don’t use the Stock Android led by Google to their phone. They use the Android operating system but they modified it. These companies modify the OS with their ideas to make it look more elegant and add additional features to Android.

Cause if you see Google Pixel phones, they use the stock android and it really looks very simple and you will not get advanced visual experience there.

Now, let’s talk about Xiaomi. They simply modify the Android OS and the modified version they named MIUI. They keep on modifying it with the advanced look and amazing features and keep on giving it a name such as MIUI 9, MIUI 10, and so on.

As they are enhancing the visual representation and also adding new features to the OS, now it requires special optimization.

Without proper optimization, users will not be able to enjoy the MIUI to that level.

The bright side of MIUI optimization

Let’s have an in-depth look at the bright side of MIUI optimization.

The primary objective of MIUI optimization is to maintain the performance of your phone. With all the visuals and additional features that Xiaomi has included, to make sure everything is working properly without suffering the users, MIUI optimization here plays a great role.

This includes,

  • Proper RAM management
  • Advanced Security
  • Better battery life
  • Auto fixing certain issues without letting the users know.

And in features, you can enjoy,

  • Split screen
  • Floating windows,
  • Live wallpapers
  • Second space and many more

The dark side of MIUI optimization

Earlier many users have reported that with MIUI optimization enabled, they have encountered such issues on their Xiaomi phones.

  • Third-parties launchers cannot be used.
  • Apps running in the background fail to sync data.
  • Freezing while scrolling long lists or lengthy web pages.

But later on, Xiaomi fixed most issues faced and reported by users. But the one issue that is still active on Xiaomi phones is that you may be asked to turn off MIUI optimization before installing apps from outside of the play store.

If you encounter any issues on your Xiaomi phone, try turning off it and check if the problem is resolved or not.

This could be a best practice while troubleshooting issues on your Xiaomi devices.

How to turn on-off MIUI optimization?

Well, by default it is turned on. And you don’t get to see this option on your normal Settings.

To view that, you need to enable developer options on your phone.


  • Open your Settings.
  • Go to About Phone
  • Tap continuously on the MIUI version until you see the notice below “You are now a developer”.

Now, go to Additional settings >> Developer options >> Turn on MIUI optimization

MIUI optimization
MIUI Optimization on Xiaomi Phones

From there you can toggle the option to turn it on and off.

Should you turn on or off MIUI optimization?

If you are a normal user, you don’t need to deal with it anymore. But if you are a power user, you need to deal with it many times.

Unless you are not facing any issues, it’s a best practice to do nothing with MIUI optimization. As by default, it is turned on, you should also let it be turned on. It is there to maintain the performance of the phone along with better battery life.

But if you encounter issues on your phone after installing a new application, you should turn it off and check whether the MIUI optimization is creating the issue or not.

If you want to install apps from other app stores such as APKPure, you may be asked to turn it off to install the app. And in that case, you have to turn off the MIUI optimization.

After turning it off, you can install apps or launchers on your phone that were not installed before.

But you may also notice some changes on your phone after turning it off.

Wrapping up

The bottom line is that you need to turn off MIUI optimization if you want to install certain apps and launchers. Also, you will notice some changes in performance and system after turning it off.

But you can turn it on anytime. Perform a reboot after turning it on to let the changes to reflect.

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