Data Limitations

Still relatively new to AppSheet. Just finished my first big app recently. I am about to start a new one for employees to track their time sheets. We have about 35 employees and the way we track time, requires us to submit multiple timesheets a day. By my estimation, we would have around 30K-40k time sheet submissions per year. I was originally going to have all time sheet submissions connected to one sheet. However, I am worried about having that much data in one sheet (lagging, data limitations, etc.) What recommendations do you all have for managing that much data and maintaining app performance?

Approaches to data scalability