Sorry for replying just now.
You don't have to do much in Xiaomi.EU because it's a lot cleaner than stock MIUI but here are the optimizations I usually do (you asked for it I warn you it's going to be a bit long ):
1.) 5G
If you don't use 5G, it's best to have it disabled to save some battery.
(Settings > SIM cards & mobile networks > choose SIM > Preferred network type > Prefer LTE/3G/2G only)
2.) Private DNS
This feature has been around since Android 9 and is basically DNS over TLS. The DNS you put here will be used system-wide as opposed to years ago where we have to set this up with every WiFi network we connect. Using a fast DNS will make your browsing experience with your phone in the internet much faster.
The fastest DNS on average is currently Cloudflare but it may vary according to yuor location.
(Settings > Connection & sharing > Private DNS > Private DNS provider hostname:
For Cloudflare with some malware blocking type "security.cloudflare-dns.com" > Save)
View attachment 37243
3.) NFC
If you don't use NFC, it's best to leave this DISABLED to save battery.
(Settings > Connection & sharing > NFC)
4.) Lock screen
4.1) Sleep
It's recommended to set the screen timeout to 15-30 seconds to save battery
(Settings > Lock screen > Sleep)
4.2) Raise to wake
I swear it gets annoying whenever the phone unnecessarily lights up when it detects even a small motion. It also consumes a bit more battery since the sensor is always active.
(Settings > Lock screen > Raise to wake DISABLE)
4.3) Wallpaper Carousel
Best have this DISABLED to save battery. You won't need this anyway if you set up a lockscreen wallpaper yourself.
(Settings > Lock screen > Wallpaper Carousel DISABLE)
5.) Gestures
This isn't an optimization but it feels a lot more natural to use than the software buttons.
(Settings > Home screen > System navigation > Gestures)
6.) Unnecessary 'security scan'
I recommend having this DISABLED since it doesn't actually do anything and just makes installing apps take longer.
(Security > Security scan > gear icon in the upper right > Scan before installing DISABLE)
7.) ADB commands
>Download ADB/Fastboot platform tools here
https://androiddatahost.com/uq6us on your PC.
>Extract the folder in the zip.
>Run "Minimal ADB Fastboot v1.4.3.exe" inside the folder.
>A program should be added to your system called "Minimal ADB and Fastboot" (directory is C:\Program Files (x86)\Minimal ADB and Fastboot).
>Go to your phone's Settings > My device > All specs > Tap on 'MIUI version' multiple times until the massage "You are now a developer" appears.
>Go to Settings > Additional settings > Developer options.
>Enable "USB debugging" (A danger message should appear. Check "I'm aware of...". Tap on 'OK').
>Enable "USB debugging (Security settings)".
View attachment 37244
>Connect your phone to your PC.
>Open the "Minimal ADB and fastboot" program.
>Type in the command "adb devices" and press enter.
>A message should appear on your phone about authorizing your PC. Allow it.
>Type in the command again "adb devices" and press enter.
>Type the command "adb shell" and press enter.
>The following changes we will be making will remain even after reboots.
7.1) Animation speed
This will make your phone feel much snappier.
Type these command ONE-BY-ONE and click enter after each one (remove the quotation marks).
"settings put global window_animation_scale 0.75"
"settings put global transition_animation_scale 0.75"
"settings put global animator_duration_scale 0.78"
7.2) Getting rid of junk
This will drastically improve performance since these unnecessary processes won't run in the background.
Type/Copypaste these commands ONE-BY-ONE and press enter after each one (don't copy paste all at once. This may take some time but it's worth it). Make sure to remove the quotation marks. Don't worry if some commands return an error, that means it has already been removed.
"pm uninstall -k --user 0 com.xiaomi.miplay_client" -> Mi Play. This is an unnecessary process that hasn't really been used for years.
"pm uninstall -k --user 0 cn.wps.xiaomi.abroad.lite" -> WPS Office. Has been flagged for years for malware. This was banned in India for a reason.
"pm uninstall -k --user 0 com.miui.msa.global" -> MSA. This is the main service that displays ads in Xiaomi phones. This is already removed in Xiaomi.EU.
"pm uninstall -k --user 0 com.xiaomi.payment" -> Unless you live in China or India, Xiaomi's own payment service is redundant and unnecessary.
"pm uninstall -k --user 0 com.ebay.carrier" -> In case bloatware from Ebay is installed.
"pm uninstall -k --user 0 com.android.browser" -> Mi Browser. It's a buggy unnecessary mess. Recommend you use other browsers like Chrome.
"pm uninstall -k --user 0 com.mi.globalbrowser" -> Also part of Mi Browser.
"pm uninstall -k --user 0 com.miui.videoplayer" -> Mi Video player. Uninstall if you prefer to use MX Player or VLC that actually support more formats.
"pm uninstall -k --user 0 com.miui.micloudsync" -> Include if you don't use Mi Cloud.
"pm uninstall -k --user 0 com.miui.hybrid" -> Found to be a data mining app that unnecesarily uses your phone's resources.
"pm uninstall -k --user 0 com.miui.hybrid.accessory" -> Also a data mining app. Very recommend that you get rid of this.
"pm uninstall -k --user 0 com.miui.player" -> Include if you don't use Xiaomi's music app.
"pm uninstall -k --user 0 com.facebook.services" -> In case Facebook bloatware was preinstalled.
"pm uninstall -k --user 0 com.facebook.system" -> Also Facebook bloat.
"pm uninstall -k --user 0 com.facebook.appmanager" -> Also Facebook bloat.
"pm uninstall -k --user 0 com.xiaomi.glgm" -> Mi Games. Very unncessary.
"pm uninstall -k --user 0 com.xiaomi.mipicks" -> Very unnecessary. Xiaomi's way to advertise their own apps.
"pm uninstall -k --user 0 com.xiaomi.joyose" -> Junk and safe to remove.
"pm uninstall -k --user 0 com.miui.notes" -> Include if you use other notes apps.
"pm uninstall -k --user 0 com.miui.cleanmaster" -> Together with WPS Office, Cleaner Master was found to be affiliated with Cheetah Mobile, that included malware and adware in their software.
"pm uninstall -k --user 0 com.miui.weather2" -> Include if you use other apps to get the weather like Google or Yahoo.
"pm uninstall -k --user 0 com.micredit.in" -> Mi Credit. Basically useless if you live outside India.
"pm uninstall -k --user 0 com.mipay.wallet.in" -> Part of Mi Credit.