Hi, I don’t know if anyone has the same issue or has noticed it, but when I install Material-UI v5 on my Meteor app and copy the example/sample of the Dialog or Menu, on the initial click I get a delay before it actually opens, it sort of hangs. I created a small repo to demonstrate the issue here…

I think this is the same issue as Unexpected module.runSetters wrapping · Issue #277 · benjamn/reify · GitHub . In the code there are parameters that have the same name as exports, and where the parameters are reassigned reify is unnecessarily calling runSetters. ~90% of the time is spent by runSette…

would this be Meteor’s code or MUI causing the issue? I could link the issue you posted on my MUI issue post.

The issue is in reify, which Meteor uses as part of its module system.

We are going to start trying to fix this issue in a few weeks.

Same issue here. The fix would be a great performance improvements for those using MUI5. Really looking forward to it.

At this point, you could say that material-ui v5 is not compatible with Meteor :slight_smile:

Au contraire mon frere. :slight_smile: I’m using Material v5 and it’s great. There’s a very small delay on the opening of the nav menu the first time which I never noticed before, and it will be nice to have it fixed.

It depends on the complexity of the app, but it’s more than just a small delay on one component. Every new component tree will add a delay, so every menu, every new route, every conditional element etc. Of course, it’s only for the first time, but users tend to refresh or close their browser from ti…

Material-UI v5 | Dialogs and Menus initial open lags/freezes

help

filipenevola December 28, 2021, 6:52pm 39

Meteor 2.5.2 is released and recommended. This lag is fixed in this version.