Usability/performance issues with G-Sync and Lightroom

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  • Updated 3 years ago
Hi everyone, I have just upgraded my screen to a 28" UHD G-Sync monitor (specifically Acer XB280HK) and Operating System to Windows 10 (from 7.) After I started lightroom I found serious performance issues with G-Sync and Lightroom including on my non G-Sync monitors. If G-Sync is set to "Fullscreen and Windowed" option Lightroom is very slow to respond and appears to, visually, run like a "low frame rate game" however the application is otherwise running like normal (edit speeds, exports, etc.)

After Changing the G-Sync setting to Full Screen only or off, even without restarting Lightroom, performance increases dramatically but still not like normal. This is, so far, the only work around I have found. The performance of lightroom is impacted so long as G-Sync is on and it causes problems for all monitors (G-Sync or not.)

If anyone has any suggestions to resolve this issue anything would be appreciated. If necessary I can provide a video of the issue. My system specs are as follows (to eliminate insufficient system spec guesses)

Intel Core i7 980X @ 3.33-3.5GHz
2x SLi'd EVGA ACX Superclocked Nvidia GTX 780's
24GB RAM @ 1333mhz
Samsung Evo 840 1TB OS/Program Disk
5.5TB RAID 5 mechanical storage (3x3TB)
2x 1920x1080 screens connected to GPU 1 via HDMI and DVI
1x Acer XB280HK UHD G-Sync monitor connected to GPU 1 via Displayport display scaling is --OFF--
Lightroom version CC2015.1.1
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Richard Browning

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Posted 3 years ago

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