What @blake means is that with a large data set and many tabs (dashboards, etc) performing calculations against Transactions and Balance History there are known performance issues with Google Sheets slowing down. This is a systemic Google Sheets issue, not so much a Tiller Money issue. We build our templates and solutions to be as performant as possible, and follow all known best practices, but there is a limit to what Google can handle when you start piling on the tabs coupled with a large Balance History and Transactions sheet. So if you find you’re adding new solutions via Tiller Money Labs and decide you don’t really need them, we recommend deleting those tabs to save processing power.
More details here