I have an error that says this game took to long to start

When this happens it has nothing to do with your Xbox. When your download speed isn't fast enough to keep up with your Xbox. Your console will tell you it too long to start. So your console is trying to process a specific amount of data at a time and if
it cant keep up it will give you the error. Please try some of these troubleshooting steps to see if you can boost your routers performance.

Performance solutions, too slow

reply if we can assist

This happens with Fortnite on my sons console occasionally.

We reset the console by holding the power button on the console for a full 10 seconds until it’s completely off. When we turn it back on and try again, it always fixes it.

agreed, with error that says "For some reason TV took too long to start. (0x8027025a)"

I have one other possible suggestion you may wish to try before sending the console in for service, but before offering my suggestion, it would be helpful to know if this issue began after the most recent Xbox system update (most recent update taking place
on or after July 9, 2019)?

And also, is your son's console enrolled in the Xbox Insider Program (a program allowing console owners to test early versions of the OS ahead of general release)?

I recommend that you restart your factory console but without deleting your games