Depending which dpi and which resolution (screen dp) you use some apps will force close.
Systemui and phone are amongst such apps.
The solution is simple, juste change your settings selectively, and find the ones that are suitable for you.
I've used xposed with many roms, and I always found the right tuning.
But it's hard to tell you which ones will be the best for you, cuz it depends on your phone environment and there are many parameters involved.
Just try, and try, you will find the right ones...