Help with Mainstage 3.1 CPU overload issue

I was using Kontakt 5, UVI Workstation and Pianoteq 5 in MainStage 3 without any issues.
Since I updated to MS 3.1, The CPU is always above 100% !!! I am facing audio dropouts and it is absolutely impossible to play a show
Is anyone else facing the same issue? Any tips to help reduce CPU overload will be helpful.
I have Contact and UVI workstation running from an external hard disk. I thought that might be the issue but i tried with a keyboard template set in MS 3.1 and still while playing CPU usage shoots to 100% plus!
I am on a MacBook Pro (Retina, 13-inch, Late 2013), 2.4 GHz Intel Core i5, 8 GB 1600 MHz DDR3.

Try to get the Mainstage 3.0.4 from a timemachine backup.
Try to update all your programs like pianotec.
For me, 3.1 feels better concerning timing/ latency. This might cause more stress for the processors.
My system i7 2,2 GHz is always getting hot, fans go crazy. There's a limit: Better than 64 Samples buffer is not possible.
To be serious: A real Piano needs 0,25ms to produce a sound. We have to deal with 4ms. That's bad. So you could increase buffersize to 128 and try playing? It makes no big difference if you play the poor 4ms ore poor 6ms for example. In every case we are far away from the real thing.
Check, if you activated the "savety buffer" checkbox in audiodriver window.
If you can't find 3.0.4., you could try to reduce the installed channelstrips in your patches. Effects in concert level should be reduced. Evt. you have Efx in busses that are not needed in most patches. So cancel them in concertlevel and install them in selected patches.
I replaced a spacedesigner reverb with an reverb outside the system, it's processed from the interface. Same with a chorus.
I tested a newer MacbookPro retina, that was not better than mine. The difference was, it produced little dropouts every 10 seconds.
Hopefuly there will be a update for 3.1 soon.
And be serious: Before 3.1 you could play a show without dropouts, but was it fun? Mainstage urgently needs better latency capabilities, generally.

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