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Old 01-27-2017, 03:45 PM   #1
Robert Johnson III
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Default iMac 5K Late 2015 and Sierra=> choppy, unresponsive GUI

Sierra and Reaper are (for me) almost unusable. Resizing Reaper goes choppy and slow, showing the mixer window takes seconds (no where near instant anyway) Selections with the Marque tool are choppy and slow etc…Using a scaled resolution and/or reduce transparency and/or a smaller Reaper window improves matters al little. The silly thing is that when I run reaper in a virtual desktop (VMware) with massive VMware CPU overhead, it runs fluid, contrary to native 5K on iMac (with all resources available). Any info from iMac 5K Late 2015 Sierra users on this?

Found this info…https://forum.qt.io/topic/59578/rend...with-retina-5k

Edit: (This post is about Reaper running on Sierra iMac 5K late 2015 27 inch Retina)
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Last edited by Robert Johnson III; 01-29-2017 at 07:28 AM.
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Old 01-28-2017, 02:25 AM   #2
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Yes I have the same problems.., its very frustrating that reaper is so choppy and laggy.. its like its running at 5 fps.. hopefully Justin can explain what the issue is please!..?, is it the new metal graphics that macOS uses?.., Logic Pro x runs smooth.

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Old 01-28-2017, 03:49 AM   #3
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Thanks for the feedback! I hate the "Reaper runs fine on my system remarks" Logic Pro X is almost as bad on my iMac... (latest version) It runs smooth only in low resolution mode (invented for this reason). Marque tool works better and soms other minor differences in GUI performance.
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Old 01-28-2017, 09:00 AM   #4
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so does windows run reaper better smoother on our iMacs???.., if so I may have to go windows then sadly, I don't enjoy windows, but this gui lag in macOS is not getting better with every update apple do?.., hopefully Justin will read this and can maybe explain to us what the problem is with macOS.

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Old 01-28-2017, 11:58 AM   #5
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Windows has no lag at all... I also have a win10 PC (i7 6700K/Nvidia GeForce GTX 1070). If a program on iMac/Sierra runs better in virtual WinXp VMware than native OSX Sierra, something weird is going on.... or the priorities are somewhere else.
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Old 01-28-2017, 01:11 PM   #6
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Robert, you may well hate the "Reaper runs fine on my system" remarks.... but if someone is running what appears to be the same system without the problems you describe, then it may help to narrow down where the problem is.

For instance, as I posted in the other thread you've started on the same topic, I have a very similar vintage of iMac, also 5k screen, and also recently updated to Sierra. I don't see the laggy response you do, and find Reaper perfectly workable on it.

I don't say this to annoy you. I say it to try and help you pin down what is DIFFERENT on your setup and causing the problem, since it appears not to be universal to iMacs, or 5k retina displays, or OS Sierra. If you would like me to give more details of the exact config of my system, please say and I'll try to oblige.
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Old 01-30-2017, 09:40 AM   #7
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Default Reaper stuck on loading Izotope Ozone 7 Equalizer

On Windows 10, what debug diagnostics can I submit ? thanks
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Old 02-02-2017, 07:22 AM   #8
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Could this be related?

https://arstechnica.com/gadgets/2017...isplay-issues/

The iMac 5K uses an LG display. The same display in external version, LG branded, is susceptible to Wifi interference.
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Old 02-02-2017, 07:37 AM   #9
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Quote:
Originally Posted by cyrano View Post
Could this be related?

https://arstechnica.com/gadgets/2017...isplay-issues/

The iMac 5K uses an LG display. The same display in external version, LG branded, is susceptible to Wifi interference.
Only when the moon is full....
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Old 02-02-2017, 07:45 AM   #10
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Sorry for being dumb and asking this again. I am on 2011 mba osx 10.7.5.
The GUI on reaper was much faster than on pro desktop pc win 10 so i sent pc back ( had noticeable lag )

Has the GUI slowed right down since El Capitan ? because its very quick on lion on 2011 MBA.

( only asking as want to upgrade soon ).
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Old 02-02-2017, 07:48 AM   #11
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Quote:
Originally Posted by hermitcrab View Post
Sorry for being dumb and asking this again. I am on 2011 mba osx 10.7.5.
The GUI on reaper was much faster than on pro desktop pc win 10 so i sent pc back ( had noticeable lag )

Has the GUI slowed right down since El Capitan ? because its very quick on lion on 2011 MBA.

( only asking as want to upgrade soon ).
This is a clean fresh installed Sierra and pristine REAPER (define slow.....) https://www.youtube.com/watch?v=ptcqWMyW8g8 (No snap)
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Old 02-02-2017, 08:26 AM   #12
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Quote:
Originally Posted by Robert Johnson III View Post
This is a clean fresh installed Sierra and pristine REAPER (define slow.....) https://www.youtube.com/watch?v=ptcqWMyW8g8 (No snap)
Thanks for that. I can see there is a noticeable delay but how do you make the time selection follow the right click drag selection please so i can replicate and compare ? ( preferences ? ). This isn't default behaviour on my version thanks.
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Old 02-02-2017, 08:28 AM   #13
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Quote:
Originally Posted by hermitcrab View Post
Thanks for that. I can see there is a noticeable delay but how do you make the time selection follow the right click drag selection please so i can replicate and compare ? ( preferences ? ). This isn't default behaviour on my version thanks.
With the mouse modifier: Media Item Bottom half => Marquee select items and time ignoring snap
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