Reduce your in-game FPS cap and graphics settings.
For Fortnite:
Settings → Frame Rate Limit
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Troubleshooting
Find the error you see and follow the steps for it.
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Synthera DocsSynthera DocsTroubleshooting
Find the error you see and follow the steps for it.
Reduce your in-game FPS cap and graphics settings.
For Fortnite:
Settings → Frame Rate Limit