k70 rgb Assigning lighting effects to individual keys (w/o lag)

So after searching through the forums I've found out how to assign lighting effects to individual keys by using macros. I'll post a gif below to show what I managed to accomplish. But now I have two problems. While the key registers and the lighting effects play fine, it won't register a key being held down. Aside from that, there are a few milliseconds of lag which make it hard to use this profile in music/rhythm games.

Is there a way to achieve this effect while maintaining the keys' standard functions so that they do not lag?

GIF example

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Try setting the CUE process's priority to High in Task Manager

Thanks! I didn't even know you could do that. I set the priority to Realtime just to be safe and it worked like a charm. I also managed to solve the button hold problem by setting up a double macro, one for the key press and one for the release. The only problem is that the button release doesn't register 100% of the time. I don't know how I can fix that. :[pouts: