I read all my comics on tablets. I don't have the tablet you're mentioning, but I feel qualified to give some advice anyway.
I'm assuming you are reading standard American sized comics. Manga and British comic pages are squarer than your average Marvel or DC comic. Also, I'm assuming you are sideloading .CBZ/CBR comics, since you mentioned ComicRack on Android.
The iPad has a squarer 4:3 screen ratio and the Mi Pad has a rectangular 16:10 ratio. Assuming you are talking about standard US comic pages, the iPad has bars on the sides of the page. On the Mi Pad, there will be bars on the top and bottom. Though the screens are comparable in size, comics will be slightly larger on the Mi Pad screen.
The best screen ratio for comics reading is 3:2. Comic pages there fit almost exactly to the screen, with no bars. The only 10" tablet I know with that ratio is a Surface Go. But I can tell you that comic apps on Windows aren't as good as those on Android. I do read comics on my 12.3" Surface Pro using an app called Cover and comics look fantastic on it. But I really wish some of the Android comic apps would be ported to Windows.
The Mi Pad has a screen resolution of 1920X1200. I have a
Lenovo Tab2 that has that resolution and comics look very nice on it. On the other hand, I have a Verizon Ellipsis that has the same resolution and the Ellipsis doesn't look as nice as the Tab2. It's not just the screen resolution, it's the quality of the build. I don't know what the Mi Pad is like.
As for Android apps, ComicRack isn't being developed any longer, but it's still a good program. Of the Android comic apps, my favorite by far is Perfect Viewer. It has a million configuration options and it can be overwhelming at first. But once you have everthing set, it's great. It's also free and has no ads.
A few others I mess with from time to time are Challenger Comics, CDisplayEX, ComicCat and ComicRack. All are decent. But none beats Perfect Viewer.
Sorry for the long rambling post. I hope you find some of this useful.