Can someone help?

For some reason, when im in a match and i open a different program for even a second, the game freezes for a while and sometimes even crashes

A little more information will be lovely, what are your pc specs, what error shows up when the game crashes, does it freeze up before it crashes, do you use dx12.

Just to list a few

i play with direct3d 11, the game stays frozen for a while until it shows the crash error thing. i dont remember the specs though

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