Fortnite uses Unreal Engine 5 with Nanite and Lumen that look incredible but are extremely demanding. Epic provides excellent per-feature control, so you can disable heavy features while keeping the game running at maximum FPS.
The Most Important Setting: Nanite and Lumen
In Settings → Video: set Rendering Mode to Performance — this disables Nanite and Lumen and can double your FPS on many systems. This should always be your starting point.
Fortnite Launch Options
In Epic Games Launcher, go to Library → three dots under Fortnite → Manage → Launch Options:
- -NOTEXTURESTREAMING — preloads all textures to prevent stutters
- -high — high process priority
- -dx12 — DirectX 12 (may improve performance on newer GPUs)
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See Services →In-Game Graphics Settings
- Window Mode: Fullscreen
- Frame Rate Limit: Unlimited
- Rendering Mode: Performance
- Shadows: Off
- Anti-Aliasing: TSR Low or Off
- Textures: Low or Medium
- Effects: Low
- V-Sync: Off
- Motion Blur: Off
Windows 11 Specific
Enable Game Mode in Settings → Gaming → Game Mode. Enable Hardware-Accelerated GPU Scheduling on modern NVIDIA GPUs — it can reduce latency in DX12 titles like Fortnite.