Anyone else find ZSLO2 very buggy?

Updated to ZSLO2 a week ago, left it stock, minus flashing PhilZ kernel. I've found it to be quite buggy, even worse than previous stock firmwares. Anyone else experiencing the same?

Things I've noticed:

1. Internet browser just sucks -> laggy, random freezes, default save location setting always returns to "Memory card" almost every time after the browser is closed (browser has actually been like this since the initial JB update)
2. phone doesn't recognize when earphones are plugged in -> earphone icon no longer appears in the notification bar, and the suggested apps no longer appears when earphones are plugged in (yes the option is enabled in settings)
3. gallery takes a long time to load every time it is opened, especially when accessed through other apps (such as attaching images for email)

Does XXLT4 have the same problems? If not I'm definitely switching.