Possible fix
If you are using Nvidia you might want to try this:
1: Go to Nvidia control panel
2: Go to "Manage 3D settings
3: Go to "Program Settings" tab
4: Find Destroyer: The U-Boat Hunter (you may need to add the program to the list with the "Add" button)
5: Find the "vertical synchroimpulse" line
6: Turn it off (or Vertical sync setting to "use the 3D application setting")
7: Apply changes
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