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Fixed in 2022.1.X

Fixed in 2021.2.X



Found in



Issue ID




High polling rate mouse causes performance issues



Reproduction steps:
1. Open new Unity Project
2. Enter Play Mode
3. In Game View, rapidly move mouse around, with its polling set to 1000
4. In Profiler window, Editor mode, observe performance

Expected result: Performance does not slow down
Actual result: Editor performance slows down significantly

Reproducible with: Razer Viper Ultimate
Not reproducible with: Steel Series Rival 600, Steel Series Rival 110, Logitech G903, Razer Naga Chroma

Affected Unity versions: 2018.4.35f1, 2019.4.28f1, 2020.3.11f1, 2021.1.11f1

1. The issue is much lesser when outside of Play Mode or when moving the mouse around in a Build
2. The slowdown seems to be correlated to the polling rate of the mouse. Setting it to 100 nearly negates the issue.

  1. Response avatar

    Resolution Note (fix version 2022.1):

    Fixed in 2022.1.0a6

  2. Response avatar

    Resolution Note (fix version 2021.2):

    Fixed in: 2021.2.0b9

Comments (2)

  1. E41e41048e3b356f76b923e5567ed186?d=mm


    Dec 13, 2021 03:32

    Hello, any update on the LONGTERM SUPPORT version fo 2020? It's not very usable with this bug present in my opinion.

  2. 75b1f7deff710b07fbd4b7c94a49dc72?d=mm


    Oct 25, 2021 17:10

    Is there a plan to fix this in the LTS version of 2020?

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