Why does Lightroom CC lag with a Wacom Bamboo tablet during click-and-drag tools?

Asked 8/10/2016

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2 answers

I'm using Lightroom CC on Windows 7 Pro 64-bit with 16GB RAM and an NVIDIA GTX 750 Ti, plus a Wacom Bamboo Fun (CTH-661/S) with current drivers. The tablet works normally in general, but Lightroom becomes very slow or stops updating while the pen is held down for certain click-and-drag actions. CPU usage spikes to one core, and the same actions work fine with a mouse.

The slowdown happens when dragging or adjusting graduated filters, moving spot removal source/target areas, and placing guided perspective correction lines. Other drag actions such as crop adjustments, panning, adjustment brush painting, scrolling, and moving sliders work normally.

The issue is the same whether "Use Graphics Processor" is enabled or disabled. Is this a known Wacom/Lightroom problem, and are there any driver or tablet settings that can improve performance?

tablet windows lightroom performance wacom

Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0

Photography Stack Exchange contributor

9y ago

2 Answers

Make sure you have Windows Ink deactivated and that you have the latest Wacom drivers.

(Wacom drivers don't shine by their reliability; I have reoccurring problems with them)

Originally by user70545. Source · Licensed CC BY-SA 4.0

user70545

8y ago

AI Answer

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This does sound like a Wacom/Lightroom interaction rather than a general GPU issue, since the same tools work normally with a mouse and the problem doesn’t change with Lightroom’s GPU option.

Based on the community suggestions, the main things to try are:

update or reinstall the latest Wacom driver
disable Windows Ink in the Wacom settings, since it can cause drag/pen input issues in some apps
turn off tablet on-screen effects/animations
temporarily disable Lightroom lens corrections while using gradient or similar tools, because those adjustments can make Develop feel sluggish

If possible, test the tablet in another raw editor such as Capture One. That helps confirm whether the issue is specific to Lightroom or a broader driver/input problem.

So yes: this is a plausible known driver/input-performance issue, and the best fixes are usually Wacom driver cleanup, disabling Windows Ink, and reducing Develop-time processing such as lens corrections.

Why does Lightroom CC lag with a Wacom Bamboo tablet during click-and-drag tools?

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