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.
Since update v0.8.0, resolution scaling and DLSS have become significantly more important for overall performance.
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.
DLSS Balanced = Best performance-to-quality ratio in most cases.
Offers a noticeable FPS boost with minimal visual loss, especially at higher resolutions.
If you experience:
• FPS drops
• stuttering
• overheating
• unstable performance
Switch to DLSS Balanced.
Frame Generation (same section):
Can improve smoothness, but does not increase real FPS.
May introduce input delay depending on your system.
If you want maximum consistency and responsiveness: 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
• high and sustained GPU usage
• performance spikes
Set:
Shadow Quality = High
Shadow Distance = High
Ultra is rarely worth the cost.
Disable “Realistic Shadows” for additional GPU headroom, especially if you experience unstable performance.
(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.
Effects can also have a noticeable performance impact, especially on higher settings.
Also consider disabling:
• Motion Blur
It does not improve clarity and can negatively affect image sharpness.
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
Reduce or turn off Ray Tracing.
The standard lighting system (Lumen) already provides very good visuals without requiring full ray tracing.
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.
Lowering these may help in very demanding scenes, but usually has less impact than the settings mentioned above.
6) FPS Cap (Graphics → Frame Rate Limit)
Stable FPS feels better than fluctuating high peak numbers.
Why?
Frametime stability is more important than maximum FPS.
An FPS cap:
• reduces temperature
• prevents power spikes
• improves smooth transitions
• reduces stuttering during mode changes
If you use a high refresh rate display (e.g. 144–165Hz):
Set your FPS cap to around 75–100 for a stable experience.
You do not need maximum FPS for smooth gameplay.
7) High RAM Usage Is Not a Problem
If your RAM usage shows 70–85% (or even higher), 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.
8) Simulation Settings (Performance → Simulation)
These settings affect CPU load and overall game stability more than raw FPS.
They are especially important in:
• crowded areas
• busy households
• large cities
If you experience:
• stuttering despite stable FPS
• inconsistent frametimes
• random slowdowns in populated areas
Adjust the following:
• Simulation Distance → High (Ultra can increase CPU load significantly)
• Population Density → Medium to High (avoid max values if unstable)
• Animation Quality → keep reasonable (very high values can impact CPU spikes)
• Outfit Simulation → “Only My Zoi” for better stability
These settings do not always change FPS numbers directly,
but they strongly affect smoothness and consistency.
A stable simulation layer = fewer stutters.
What Actually Impacts Performance Most
• DLSS mode
• Shadow quality
• Volumetric effects
• Ray tracing
• Simulation settings (CPU load, population, distance)
• 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
Orange – Simulation
