# MacOS Monterey et puce M1 max

**URL:** <https://help.ganttproject.biz/t/macos-monterey-et-puce-m1-max/4943>\
**Category:** GanttProject Desktop Support\
**Created:** [May 17, 2022, 9:00am UTC](https://help.ganttproject.biz/t/macos-monterey-et-puce-m1-max/4943 "2022-05-17T09:00:55Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![DmitryBarashev](https://help.ganttproject.biz/user_avatar/help.ganttproject.biz/dmitrybarashev/32/406_2.png) [@DmitryBarashev](https://help.ganttproject.biz/u/DmitryBarashev)\
**Post date:** [May 23, 2022, 2:06pm UTC](https://help.ganttproject.biz/t/macos-monterey-et-puce-m1-max/4943/2 "2022-05-23T14:06:05Z")

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We don’t know the reasons why GP becomes slow on some macOS systems. We have seen a couple of reports about lags on M1, but it is not clear if they are actually caused by M1 or by something else (e.g. screen): [Gantt software started lagging while using Apple M1](https://help.ganttproject.biz/t/gantt-software-started-lagging-while-using-apple-m1/2536)

We also tested GanttProject on M1 laptops which we could find and it worked fine.

One possible workaround which might help is to install a Java Runtime for M1 chip and test if GanttProject ZIP distribution works fine with it. I suggested doing this at the end of this topic: [Gantt software started lagging while using Apple M1 - #15 by DmitryBarashev](https://help.ganttproject.biz/t/gantt-software-started-lagging-while-using-apple-m1/2536/15) but I didn’t receive any response from the topic author, so I can’t claim that it fixes the issue,

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