Default My Galaxy Gear is Super Slow

So I installed a custom ROM on my galaxy gear, Null 23 recently.

Everything works the way it should but there's an issue. The gear is now really slow. For instance, when I attempt to run Flappy Bird on it, it's literally like I'm playing the game in slow motion.

I also don't know if it's a RAM issue or not but often times when a have an application up, the screen will suddenly turn black. It's not going to sleep, that's for sure. The screen just goes black and everything I touch the screen it lights up for a split second and when I release it goes black again. Most of the time, the apps will also become unresponsive at this point.

Any advice? Thanks.