If you have Galaxy Tab A 10.1 2019 and are in the UK, then make sure you update it to One UI 3.1 as it was released today. Mine feels so much faster and smoother. Amazing work Samsung and thank you for pushing the update out early.
Actually mine updated to it 6 days ago (1 July) and its been fantastic. Best update you could ask for, improved performance and battery life. Really good job on this one Samsung.