It would be best to check the sites for the specific addons, a lot of addon developers are in the beta so they have a good idea of what's going to happen.
A lot of players are into having these extravagant UIs, which is fine do what makes you happy, but that's like driving a sports car that can't fit a trunk full of groceries - all flash and no practicality.
If that doesn't help, you're fucked ; D i5-3570k | Scythe Mugen 3 | 8GB DDR3-1333 | Asus P8Z77-V LX | MSI GTX 1070 Gaming X 8G | 250GB Samsung 840 EVO | 750GB Crucial MX300 Fractal Define R4 | Dell U2713HM | Das Model S Professional Silent | CM Storm Xornet From my experience, it was not Quest Helper but the Tom Tom implementation that caused the drop of fps.
Try disabling Tom Tom (QH will still work as intended, just look at the map instead of following the arrow).
I've been using it for a long time now and it rarely seems to have problems after patches, though. Carbonite is a super-addon that does map, questing, gathering, inventory...
It tends to break in PTR but it's always fixed by release. I haven't used it in a long time so maybe it has some additional features now. It will tell you when there is an update waiting based on the background communication with other users when you're in the game. Every time I see somebody with Xperl I cringe a little bit on the inside.A lot of Pv E Heroes are into having these extravagant UIs, which is fine do what makes you happy, but that's like driving a sports car that can't fit a trunk full of groceries - all flash and no practicality.XPerl seems like an attempt at meeting in the middle. There are plenty of places to look up world first kill videos: You won't see those players running XPerl.You can check your favorite addon website, but for the most part authors have access to BETA, where they can update their addons as builds progress.