Hey guys, I use Audacity to chop up tracks on live albums I've recorder and for whatever reason, with the switch to a 64 bit version of Audacity, it performs soooo slow on my Mac Pro 2013 (6 core, D500, 32GB ram, etc). I'm really not sure what to make of it. I tried completely uninstalling Audacity but the issue remained. I've searched and found no one experiencing this issue. I can't recreate the issue on my MacBook Air 2013 11" lol, it's still solid there.
Let me know if you can help. I'm running version 2.3.2 and using Mojave 10.14.5
Slow Performance on 6 Core Mac Pro
Forum rules
This forum is for Audacity on macOS 10.4 and later.
Please state which version of macOS you are using,
and the exact three-section version number of Audacity from "Audacity menu > About Audacity".
Audacity 1.2.x and 1.3.x are obsolete and no longer supported. If you still have those versions, please upgrade at https://www.audacityteam.org/download/.
The old forums for those versions are now closed, but you can still read the archives of the 1.2.x and 1.3.x forums.
This forum is for Audacity on macOS 10.4 and later.Please state which version of macOS you are using,
and the exact three-section version number of Audacity from "Audacity menu > About Audacity".
Audacity 1.2.x and 1.3.x are obsolete and no longer supported. If you still have those versions, please upgrade at https://www.audacityteam.org/download/.
The old forums for those versions are now closed, but you can still read the archives of the 1.2.x and 1.3.x forums.
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britishgaming
- Posts: 1
- Joined: Fri Jun 14, 2019 3:21 pm
- Operating System: macOS 10.15 Catalina or later
Re: Slow Performance on 6 Core Mac Pro
I'm also having really slow performance on Audacity, with severe lag on basic actions such as highlighting a waveform. This is an iMac 5K, not a Mac Pro, but Audacity is the only program with such issues - stuff like After Effects and Premiere don't have this.
However, I have noticed that the latency seems to be related to the size of the window. If I reduce the window down to a small aspect ratio, it runs fine - but if I enlarge it to fill up lots of the screen it runs slowly. I wonder if you have the same experience?
However, I have noticed that the latency seems to be related to the size of the window. If I reduce the window down to a small aspect ratio, it runs fine - but if I enlarge it to fill up lots of the screen it runs slowly. I wonder if you have the same experience?
Re: Slow Performance on 6 Core Mac Pro
Yup, that's exactly what I experience. If I full screen the app, it's almost unusable. If I make it very small, like 25% of my screen it's much snappier (not quite what it was before but usable). I'm on a 4K and a 5K screen, I wonder if the higher resolution has something to do with it?
Re: Slow Performance on 6 Core Mac Pro
Yup, resizing to about 25% of my screen size appears to fix the issue. I'm on a 4K and a 5K screen (both Dell monitors) so I wonder if that's causing the issue? My MacBook Air is pre-Retina, and it appears to work fine.
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waxcylinder
- Forum Staff
- Posts: 14581
- Joined: Tue Jul 31, 2007 11:03 am
- Operating System: Windows 10
Re: Slow Performance on 6 Core Mac Pro
I have a MacBook Pro SSD 2017 running 10.14.5
I see no speed degradation on current release 2.3.2 or the latest alpha test build I have for the upcoming 2.3.3 even when running at fill screen - so I am totally puzzled by these reports.
WC
I see no speed degradation on current release 2.3.2 or the latest alpha test build I have for the upcoming 2.3.3 even when running at fill screen - so I am totally puzzled by these reports.
WC
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Re: Slow Performance on 6 Core Mac Pro
Are you using an external monitor? I wonder if that’s related what size MacBook do you have? I have no issue in my MacBook Air 11.
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waxcylinder
- Forum Staff
- Posts: 14581
- Joined: Tue Jul 31, 2007 11:03 am
- Operating System: Windows 10
Re: Slow Performance on 6 Core Mac Pro
No just the laptop
Mabook Pro (Retina 13-inch early 2015)
Processor: 2.7 GHz Intel Core i5
Memory: 8GB 1867 MHz DDR3
Graphics: Intel Iris Graphics 61001536 MB
WC
________________________________________FOR INSTANT HELP: (Click on Link below)
* * * * * FAQ * * * * * Tutorials * * * * * Audacity Manual * * * * *
* * * * * FAQ * * * * * Tutorials * * * * * Audacity Manual * * * * *
Re: Slow Performance on 6 Core Mac Pro
Did anyone ever sort this out? I too am having significant lag/delay problems after updating to 2.3.1 or 2.3.2. It seems that 2.3.0 works OK.
I'm on a 5K iMac 4 GHz i7 with 40 GB of RAM. I am running a second 27" monitor with an extented desktop but a quick check seems to suggest that the second monitor isn't the issue. I run Audacity on the primary iMac monitor. As described above, running 2.3.1 or 2.3.2, if I make the window very small, it doesn't lag. But if I stretch the window out or run the app full screen, it's super super laggy.
When I revert back to 2.3.0, I don't have the issue. Maybe something related to 64 bit?
I'm on a 5K iMac 4 GHz i7 with 40 GB of RAM. I am running a second 27" monitor with an extented desktop but a quick check seems to suggest that the second monitor isn't the issue. I run Audacity on the primary iMac monitor. As described above, running 2.3.1 or 2.3.2, if I make the window very small, it doesn't lag. But if I stretch the window out or run the app full screen, it's super super laggy.
When I revert back to 2.3.0, I don't have the issue. Maybe something related to 64 bit?
Re: Slow Performance on 6 Core Mac Pro
Which version of macOS do you use? (https://support.apple.com/en-gb/HT201260)
9/10 questions are answered in the FREQUENTLY ASKED QUESTIONS (FAQ)
Re: Slow Performance on 6 Core Mac Pro
Sorry, I meant to include that and forgot. 
I'm on 10.14.6
I'm on 10.14.6