The Google Sheets integration is painfully slow. It takes about 20 seconds to load the spreadsheet then the same for the sheet and the same for the column.
I have a project with 5 of these ‘pieces’ each connecting to the same sheet, and it takes the same time for each, which makes bug-fixing difficult.
Maybe the system can cache what it finds, with the assumption that we’re likely working on the same thing in the current project. Then in the background show it’s still looking (to cover people that do want to connect to different sheets).