Slow response and trouble with mutators

[Martin_Herraiz]

Hi all.
I'm experiencing some troubles:

• Response when typing on a comment box is slow (sometimes it takes a couple of seconds to see on screen what I typed).
• Using the mutator to add a new item gets terrible. Please see on the image what happened when I tried to insert a new string (in the second position) to a Join text block (almost all the existing strings got disconected, because only two sockets remained).
  

Does it happen to someone else, or do I need to buy a new and faster computer?

[ABG]

The mutator does not scale well.

At your level, switch to an iterative solution like YAML, that can be generated programatically from dictionaries.

Browse Google Sheets in YAML format

This tutorial is meant to show an alternative way to display wide table data in portrait mode. It uses YAML. YAML is a data serialization language that is often used for writing configuration files. Depending on whom you ask, YAML stands for yet another markup language or YAML ain't markup language (a recursive acronym), which emphasizes that YAML is for data, not documents. This tutorial is browse-oriented, and centers around a value procedure that can take a table (row of rows) with a heade…

[ewpatton]

In an earlier version of App Inventor we had patched this to work. I'm wondering if the latest update to Blockly may have degraded mutator performance.

@Martin_Herraiz Would you mind sharing a copy of the project with me for testing?