Composer nearly unusably slow for editing dialogs after updating to 1.3.0

[ttur]

Describe the bug

After updating the composer from 1.1.1 to 1.3.0 editing a complicated bot is so slow that actions (such as editing a sendresponse) take 5-10 seconds, and occasionally fail.

Simpler dialogs can be edited okay, more complicated ones not at all.

We have been building an advisory bot since composer early betas. Our bot has 30+ dialogs. Simple dialogs have a few activities. Complex dialogs have a few hundred. We support three languages.

Most recently we were using version 1.1.1 and that worked quite well for this.

Version

Release: 1.3.0

Browser

• Electron distribution
• Chrome
• Safari
• Firefox
• Edge

OS

• macOS
• Windows
• Ubuntu

Screenshots

Here is an example of the edit operation failing (editing Finnish version of the dialog that hasn't yet been properly translated from English):

Additional context

The process is taking just under 1G of memory on my laptop. I would be happy to give it more, if that helps, if I knew how.

It does not seem to matter whether the local bot is running or not. Editing is very slow and occasionally fails regardless.

[ttur]

Some testing results:

• Release 1.2.1 is a bit faster than 1.3.0, but still way slower than 1.1.1 (tested on Windows and MacOS, same bot)
• Removing our extra languages (Finnish and Swedish) – leaving only English – does not make 1.3.0 much faster; maybe a little

[gabog]

Thank you @ttur, we will address this issue in an upcoming release.

[cwhitten]

This will be addressed in an upcoming patch (1.3.1)