If you have an issue be it graphical or performance based, the first step is to make sure it isn't a bug from your rom,
if you've excluded that possibility post in this thread, for me to be able to do anything with it, you must include;
Your Device Name
Your Android Version
Your Current Rom
Your Device DPI
Version of this Launcher
If you haven't followed the install instructions below, don't expect me to do anything to resolve your issue until you do.
Download and Install MiHome-Step1.apk
Once the launcher loads, slide up from above the nav bar and hit "Launcher Settings."
Scroll down the options until you find "Cell Layout Type"
Hit it and select the option that suits your device best
Please choose wisely because you'll need to re-install the app to change this.
Download and Install ZSC.mihome.BX.apk, (X being the latest version number)
You will be prompted to update MiHome, obviously confirm it.
Once MiHome loads, you may or may not notice a rather mangled looking clock widget.
I am aware of this and for the moment, delete it.
Head into launcher settings, if you don't have a physical menu button look in the next section.
Hit the "Lockscreen" option, uncheck "Use MiHome Locker",
this is the lockscreen replacement Xiaomi includes with the launcher.
It doesn't play well with larger screens or landscape as of the moment
Optional But Very Recommended
If you do not have a physical menu key,
long press an empty part of the screen and hit the "Toolbox" icon.
Select the "Launcher Settings" icon on the far right.
You'll see the icon is on your home screen, open the settings.
Hit the "Launcher" option, look down at the last option "Choose Swipe Up Gesture Function"
Hit it and select the last option "Swipe up to open Menu."
Now you can view all your options by sliding up from above the nav bar again!
If your transitions seem slow, or strange when changing home pages,
Head into "Launcher Settings", Hit Launcher
Hit "Screen Transition Effects" and select something other than "Classic",
This is optional, but Classic looks silly and makes the launcher seem less fluid.
It may also appear strangely on some devices.
YOU MUST INSTALL STEP 1 THEN INSTALL STEP 2
Step 1 - Refer to the Instructions
Step 2 - Refer to the Instructions
I'm not responsible for anything that happens to your device, but I highly doubt anything will.