Massive lag spikes and system slowdown when Orca is not in main window. #481

New Issue

MrUnknownDE · 2026-04-05T16:21:27+02:00

MrUnknownDE commented

2026-04-05 16:21:27 +02:00

Originally created by @Mart7Mcfl7 on 3/4/2026

Is there an existing issue for this problem?

I have searched the existing issues

OrcaSlicer Version

2.3.2-rc

Operating System (OS)

Windows

OS Version

Windows 11

Additional system information

CPU - Ryzen 5800x3d
32gb -3600
rtx 3700
Nvme

Printer

k1max, but does not matter

How to reproduce

Open Orca slicer.
Open a new window - eg: Chrome, or another application

Actual results

Massive lag-spikes and system slowdowns, Mouse cursor unusable, mouse polling non existant.

Closing Orca gives more lag and ususable system, but system goes back to normal quickly.

Expected results

An application not in main view or miniamised should not be fighting the main system like this, it's almost like Orca is interuppting the entier system - even the hardware polls of the mouse.

No project file uploaded - none needed.

Project file & Debug log uploads

No project file uploaded - none needed.

Checklist of files to include

Log file
Project file

Anything else?

No project file uploaded - none needed.

*Originally created by @Mart7Mcfl7 on 3/4/2026* ### Is there an existing issue for this problem? - [x] I have searched the existing issues ### OrcaSlicer Version 2.3.2-rc ### Operating System (OS) Windows ### OS Version Windows 11 ### Additional system information CPU - Ryzen 5800x3d 32gb -3600 rtx 3700 Nvme ### Printer k1max, but does not matter ### How to reproduce Open Orca slicer. Open a new window - eg: Chrome, or another application ### Actual results Massive lag-spikes and system slowdowns, Mouse cursor unusable, mouse polling non existant. Closing Orca gives more lag and ususable system, but system goes back to normal quickly. ### Expected results An application not in main view or miniamised should not be fighting the main system like this, it's almost like Orca is interuppting the entier system - even the hardware polls of the mouse. No project file uploaded - none needed. ### Project file & Debug log uploads No project file uploaded - none needed. ### Checklist of files to include - [x] Log file - [ ] Project file ### Anything else? No project file uploaded - none needed.

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Reference: github/OrcaSlicer#481