Might be annoying but more like feature. Have you tried different themes as
@WarCow mentioned or different home launchers? As
@thecrunked taught Xposed with right module could fix this.
With unlocked bootloader yes. With locked bootloader maybe. Problem here is that you have to find a way to kill Sony ric when your device boot. Dualrecovery do it for you by installing busybox and
@[NUT]´s disable ric script wich needs busybox to work. Here is the link for flashable script to disable ric if you are interested:
So with locked bootloader you basicly need to push those files (busybox + script) to system partition without write acces to system. Maybe possible with ADB. Or you may found another way to kill Sony ric. With Sony Lollipop there is also problem with SELinux wich is the cause we don´t have custom recovery for locked bootloader at moment. It doesn´t influence to system r/w though. Let see if
@[NUT] found solution to this.
As my bro
@MJFox78 said there is xposed for Lollipop. It is alpha version and there might be problems with it. First one is how to install it without custom recovery. With locked bootloader it can be done by flashing it right after you have flashed prerooted firmware but before you boot your device first time. There are some report saying it´s working and some it isn´t. Someone report that it works only if you wipe dalvik cache on every boot. With unlocked bootloader it most likely is much easier. At the moment it might be good idea to wait that xposed is developed further and we have working recovery for locked bootloader unless you are not afraid of hickups.