I made a rooted ROM for Allview Alldro 2 Speed DUO based on the original update pack to Android 4.1.1 on wich I uninstalled all the bloatware and crapware. The only problem with it is the Sleep of Death issue wich this ROM has since the release.
I personally use the Onda VI30 Dual Core ROM (the device from wich Alldro2 Speed DUO was cloned) with Android 4.1.1. The only difference is that this ROM works much better than Allview one, the Sleep of Death issue is fixed and does not support the back camera because Onda VI30 dual core doen't have one. Considering the quality of the back camera, it's not a problem for me. Everything works well on this ROM, I rooted it, cleared it from bloatware and crapware, but you have to know how to flash with ImageBurningTool.