Topic on Talk:Far Cry 5
Maybe try to lock your FPS. You could also try out disabling hyper threading in BIOS just to ensure if it's not related. If it's Windows 11, you can also try out disabling memory integrity. Maybe even try out game mode in the OS. You can delve into some tweaks and trick described in this article: https://www.pcgamingwiki.com/wiki/Windows
Furthermore, you can test out DXVK, esp this one. https://gitlab.com/Ph42oN/dxvk-gplasync with GPL flag in configuration file turned on.