This has been happening to me on iPad, Oneplus 6T, and Pixel 5 since April. It's now June 10, 2021 and it hasn't been fixed. It's unusable to be frank.
How are you even still selling 2k21? It's unplayable. You should be paying people to play it on stadia. Most garbage gaming experience I've ever had and nobody is doing anything to fix it. SMH