Why can’t I play valorant?

For context, when I boot up valorant the game itself loads fine and everything. But after I have the game loaded for a while my desktop makes a noise as if an error or something happened and not only does my valorant freeze every 5-10 seconds, it does it for my entire PC, and only unfreezes when I turn it off and on again, it doesn’t happen for any other riot game except for valorant. Does anyone know what’s wrong and/or how to fix it