This guide focuses on the settings that truly impact performance, visual quality, stability and smoothness. The goal is not to lower everything but to prioritize intelligently.
Stable frametimes and headroom matter more than extreme “Ultra” presets.
1) DLSS / DLAA (Graphics → Upscaling / Anti-Aliasing Section)
This is the single most important performance setting in the game.
DLAA = Native resolution with AI anti-aliasing.
Looks excellent, but costs more GPU performance.
DLSS Quality = Lower internal resolution + AI reconstruction.
At 1440p / 1600p it looks nearly identical in motion, but runs significantly more efficiently.
If you experience:
• FPS drops
• stuttering
• overheating
• unstable performance
Switch to DLSS Quality.
Frame Generation (same section):
Only useful below ~70 FPS.
Above 80–90 FPS, it adds little benefit and can introduce instability or input delay.
If you want consistency: turn Frame Generation off.
2) Shadows (Graphics → Shadow Settings)
Ultra shadows consume a large amount of GPU power for slightly softer edges.
Difference between High and Ultra:
Barely noticeable during gameplay.
If you experience:
• sudden FPS drops in busy scenes
• GPU constantly at 99%
• performance spikes
Set:
Shadow Quality = High
Shadow Distance = High
Ultra is rarely worth the cost.
Disable “Realistic Shadows” for an additional 4–8 % GPU headroom, especially on mid-range systems.
(Thanks to @LittleBrownBiscuit for this addition)
3) Post-Processing & Volumetrics (Graphics → Post-Processing / Effects)
This includes:
• volumetric lighting
• fog
• screen space effects
Ultra can cost 5–15% performance.
The difference from High is subtle in motion.
If you experience:
• stuttering during transitions between different modes
• unstable frame pacing
• GPU temperature spikes
Set Post-Processing to High.
Also consider disabling:
• Motion Blur
It does not improve clarity and can reduce performance.
4) Ray Tracing (Graphics → Ray Tracing Section)
Ray tracing has a heavy GPU impact.
In a simulation/social game like inZOI, the visual improvement is limited compared to the performance cost.
If you experience:
• crashes
• purple/pink rendering issues
• severe FPS drops
• GPU overheating
Turn Ray Tracing off.
The standard lighting system already looks very good.
5) Textures & View Distance (Graphics → Texture & Distance Settings)
These affect immersion more than most other settings.
If you have 8GB VRAM or more:
Textures = Ultra is safe.
If you experience:
• texture pop-in
• blurry assets
• loading hiccups
Keep textures high and reduce other settings instead.
Character/Object Distance can stay at High or Ultra depending on your system.
6) FPS Cap (Graphics → Frame Rate Limit)
Stable 100 FPS feels better than fluctuating 140+ FPS.
Why?
Frametime stability is more important than peak numbers.
An FPS cap:
• reduces temperature
• prevents power spikes
• improves smooth transitions
• reduces stuttering during mode changes
If you use a 165Hz display:
Set FPS cap to 100.
You do not need maximum FPS for smooth gameplay.
7) High RAM Usage Is Not a Problem
If your RAM usage shows 70–85%, that is normal.
The game uses RAM for asset caching.
This reduces loading times and improves smoothness.
High usage is only a problem if:
• the game freezes
• your system starts disk swapping
• stuttering becomes constant
Otherwise, it is expected behavior.
What Actually Impacts Performance Most
• DLSS mode
• Shadow quality
• Volumetric effects
• Ray tracing
• Frame Generation
What Is Often Overrated
• Ultra shadow tiers
• Maximum post-processing
• Motion blur
Optimization is not about lowering everything.
It’s about reducing bottlenecks while keeping visual impact high.
Stable systems feel better than extreme ones.
Color-Code for the screenshots below:
(screenshots are posted in order of appearance in your inZOI game settings)
Yellow – DLSS
Blue – Shadows
Green – Post-Processing
Purple – Ray Tracing
Pink – Distance & Textures
Red – FPS Cap
