Google Sheets performance is terrible indeed. I carefully studied G. Sheets for our data grid product DatagridXL (https://datagridxl.com https://datagridxl.com)

Google Sheets performance is terrible indeed. I carefully studied G. Sheets for our data grid product DatagridXL (https://datagridxl.com https://datagridxl.com) and many times I was shocked by how slow and old it feels when performing basic operations. You get to feel a certain kind of pride when your bootstrapped business product has better performance than the multi billion dollar company product. Of course, nowhere near the amount of features G sheets has.