Noticeable lag in setting active class on Link

[NicholasGWK]

I have a page that has a pretty large render + lots of aysnc going on, but I haven't been able to diagnose the cause of this issue. When I click a new link, there is a long, noticeable delay in when the link adds the active class. It appears even after all the rendering and network activity as stopped, there can still be a long delay (5 seconds or so). Wondering if anyone else is experiencing this behaviour or has a workaround, otherwise I'm looking at imperatively modifying the class in componentDidMount for each of my sub-views.

Links are sidebar nav icons, and the active class gives them a shaded background, if that matters.

[mjackson]

@NicholasGW Would you mind upgrading and testing your site on version 1.0.0-beta2? The current code implements the isActive check as a simple string comparison, so perf should improve considerably 99% of the time.

[gaearon]

Do any components between the <Link> and the <Router> implement shouldComponentUpdate?
This might be the same problem as #470 and facebook/react#2517.

[ryanflorence]

Link now listens to the history to know if its active, so they should be much faster now on re-renders, though time will tell if they are slower now to set up 😐

Closing and hoping for no new tickets to come in saying the new implementation is slow 🙏

[billyshena]

@ryanflorence Do you still have this issue?
I'm also currently rendering <Link> dynamically and I can notice a small delay when the active class is set on the component.
Did listen to the history fixed the performance problem ?

Best,