Seeing this is not great. 

https://twitter.com/dashorst/status/487607610695483392

I've asked for details to know what are the specifics.  

But it's worrisome. 

Please make sure when you test your stuff you do it together with the full toolset and not just your one plugin loaded. 

Let's make sure we test this as users and not just as individual plugin developers. 

That's the only way we can spot performance issues caused by the combination. 

/max (sent from my phone)