The halo app shouldn't be very big.
I haven't tried much else.
*EDIT*
I'll try to find some smaller games tonight and link you to them.
Am I right to switch back to the latest version of RTSS?
Just tested with these:
https://www.microsoft.com/store/productId/9MVW4QL8CXL2
https://www.microsoft.com/store/productId/9PGLMW5KZ2P4
https://www.microsoft.com/store/productId/9NBLGGH4QS1S