Extremely slow workflow details view

[JBBianchi]

What happened:
After starting multiple instances, going to the workflow definitions' list and coming back to a workflow detail, the list of instances/graph takes multiple seconds to display!

What you expected to happen:
To be way faster

[JBBianchi]

@cdavernas > Could it be a deserialization issue ? Making the request is quite fast but it takes a lot of time for the result variable to be assigned.

[cdavernas]

@JBBianchi What about performances when debug/remote debug (Blazor) is disabled? Still unsatisfying?
In addition, are you using persistence plugins?

[JBBianchi]

@cdavernas no persistence, I don't think it have anything to do with debugging. It's await this.Serializer.DeserializeAsync<List>(json, cancellationToken) in the api client that hangs.

[cdavernas]

@JBBianchi I think it's due to the Dynamic implementation, which is very bad news 😭

[cdavernas]

@JBBianchi Hasn't this been fixed, aside from Dynamic issue (which will be solved with .NET 7 and replacement of Newtonsoft)?

[JBBianchi]

@cdavernas the issue is still present to my knowledge. 🤞 for it to be solved with .NET 7 and System.Text.

[cdavernas]

Fixed the issue in #366.

Minor improvements involved serialization optimization, achieved mainly by switching to System.Text.Json and eliminating types like Dynamic. The major fix addressed design flaws: the API's workflow instance metadata included the workflow input/output for every activity.