[BUG] Populating DataGrid is very slow

[AnthonyPhan]

Environment

Please provide as many details as you can:

• Hosting type
  • [x] Form.io
  • [ ] Local deployment
  • Version:
• Formio.js version:
• Frontend framework:
• Browser:
• Browser version:

Steps to Reproduce

1. Navigate to Formio Sandbox
2. Enter the following work space id 619e5a1bfa16f1c37f7df799
3. Click the 'Fire Event' button and observe how long it takes for the DataGrid to finish loading

Expected behavior

The DataGrid should load instantaneously

Observed behavior

Example

Please see Formio Sandbox id 619e5a1bfa16f1c37f7df799

[SrScottz]

Any news? I have this problem today

[lane-formio]

Does this only happen when rendering the icons? Otherwise, it seems like it's rendering the rest of the data instantaneously. This isn't something we will likely resource to investigate, but are always open to reviewing any PRs that might improve this performance.