Go to the Home menu and make sure the highlight is over the Home option on the left. If resetting the Roku TV doesn't solve the issues with slowing, you may have to uninstall and reinstall the app you ...
Once the eShop loads, look for the Redeem Code option in the main menu. On the Switch 2, this appears in the left navigation ...
Want to redeem that shiny new Xbox Gift Card code? Maybe an Xbox Game Pass time card code? Perhaps it's even a new game?!