Default [Q] HTC butterfly mk6577 faked quad core clone

Ok I got this phone earlier this year it was suposed to be a clone of the htc butterfly with a quad core processor the mt6589 it had appeared to have a quad core in it until i looked deeper into it and found it was actually a mt6577 dual core .

My question is are there any custom roms that i can flash to the and what would be the easiest way. it is running htc sys environment but is sluggish and crashes and memory always seems used up.

bb chip mt6577
ms board : dlxu
uboot ver: 2010 . 06
kernak ver. :3.0.13 gcc 4.4.3
andriod ver : 4.1.1
costom build ver:1368851160