Are you using a Razer (Synapse) mouse and/or keyboard ?
If so, see if upgrading to the Synapse-3 Beta helps. If not, uninstall the “Razer Chroma SDK Core Components” using Windows 10 Settings / Apps / Uninstall. See Known Technical Support Issues - [Updated June 21, 2020!] - #3 by Zuvykree (and the post just above that one) for more details.
If you’re not using Razer drivers… using the GeForce Experience optimizer can sometimes create problems… I’d stay away from it. Try to reset your in-game options and see if it helps :