I have 3q rc0710b tablet .. the cpu is Rockchip RK2918. I am looking for a custom rom for this slow tablet ,to get better performance.. can I try any rk2918 custom rom ? Where can I get best rom ?
A ROM that is designed to run on an RK2918 will not run on any RK2918 chipset. The ROM still needs to be built for your device specifically.
Check XDA-Developers for a ROM for your tablet.