I had no lag on 4/29, nor on 4/30,except when I tried bytecode kernel, which made it unusable.
I wipe cache, dalvik cache, and system each time I install.
Same here 29 & 30 have been rock solid. I just update through the cmupdater.
Here's a first for me... Audio dropped while using headphones on 4/30 build. I unplugged and no sound from the speakers either. Sometimes happens on BT for media but never on headphones. With BT I can go into the settings for the BT device (under BT settings) and toggle off then on for media audio and it comes back. I can't mess with this today so I'm switching to stock but will try the next build when it's out. I may go back to 4/20 or 4/26 which seem to be the last builds that had anything OMAP or Moto specific changed and worked fine for me.
Every once in a while this happens to me. I loose sound. Every time I just go in and re wipe cache & dalvic and works flawlessly from then on. 4/29 & 4/30 have had better battery for me it seems.