Exit the game and go to your Steam Library, right click DDLV and click Properties > Installed Files > and Verify the integrity of the game files.
See if that helps.
Additional things to try:
If you have any gaming hubs (even if you don't actively use them) like OMEN or GeForce, make sure they are updated and turn off any overlays/in-game options.
You can also try capping frame right by these instructions: Right click DDV in the game library > Click Properties > Under General > Launch Options > In the text box type fps_max <#> for example if you want it to cap at 75fps, type fps_max <75>.
If these fail, you might need to perform a clean install (not losing any progress, just doing a full clean re-install of the game) which I can send steps for if the other things don't work.