Eexpress Performance Mod v1.2 for ATS — More FPS, Smarter Traffic, Zero Visual Downgrade. Tired of frame drops in big cities and heavy weather? This mod rebuilds how American Truck Simulator handles traffic and world detail — boosting your FPS while making the world MORE realistic, not less.
⏰ REALISTIC RUSH-HOUR TRAFFIC SYSTEM• Real hourly traffic curves: AM rush (6:30–9:00), calm midday, PM rush (16:30–19:00)
• Nearly empty roads at 3 AM — just you, the stars, and other truckers
• AI trucks keep rolling through the night,
trimmed where the game hits hardest — smooth downtown driving
⚡ PERFORMANCE OPTIMIZATIONS• Global AI vehicle limit tuned: 50 → 35 (CPU relief)
• Optimized spawn/despawn distances (less background simulation)
• Detail grass density reduced to 40% + draw distance tuned (GPU relief)
• Rain and thunderstorms far less frequent — the worst FPS scenario, now rare
✅ CLEAN & SAFE• No physics, economy or save-game changes
• Compatible with truck mods, map mods and s
• Works on ATS 1.60+ / 1.61
Changes in v2.1:- UPDATE AGRESIVE CONFIGS SCS TRAFIC REALISTIC FOR SAVE CPU AND GPU USE
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HOW TO INSTALL
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1. Close the game.
2. Go into the profiles\ folder and copy ONE of the .scs
files to:
Documents\American Truck Simulator\mod\
3. Start the game, open the Mod Manager, enable it.
IMPORTANT: only ONE at a time. If you enable two, they both
edit the same game files and fight each other.
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WHICH ONE DO I PICK
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1 - Balanced (mid-range PC)
GTX 1060 / RX 580 and up. Keeps the roads busy, trims the
grass and the worst city-centre spikes.
2 - Low-End (weak PC) <-- recommended
GTX 1050 / RX 560 / older i5 / small all-in-one PC.
3 - Steam Deck (ultra low)
Steam Deck, ROG Ally, integrated graphics, mini PC.
Very aggressive. On a normal desktop it cuts more than
you need.
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WHAT EACH PROFILE CHANGES (vanilla ATS: AI 50, grass 60)
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Balanced Low-End Deck
AI vehicle limit 30 22 15
Spawn distance 450m 360m 288m
Despawn distance 585m 450m 360m
Grass density (of 60) 41 29 17
Grass draw distance 72m 51m 38m
Grass drawn vs vanilla 13% 4% 1%
(the last row is what actually costs you frames)
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BONUS - EXTRA FPS FROM config.cfg
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A mod can only touch the game's def files. On a weak PC the
real framerate lives in shadow resolution, mirrors and level
of detail - and those sit in config.cfg, where no mod can
reach.
The tool in this folder can:
config-tuner\TUNE PERFORMANCE.bat
It backs up your settings before touching anything, shows you
exactly what it will change, and lets you undo it whenever you
want. It asks which game to tune (ETS2 or ATS). Read
config-tuner\README.txt.
It is OPTIONAL and separate from the mod.
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MEASURING FPS PROPERLY
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Traffic changes a lot depending on the in-game clock. If you
measure at different times of day the number means nothing.
Keep all three the same across both runs:
Place ..... same spot, ideally a big city (LA, Las Vegas)
Time ...... 16:30 - that is the peak, the worst case
Weather ... clear in both
Watch your MINIMUM fps, not the average.
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WHAT IS NOT TOUCHED
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Physics, economy, savegames, textures, models, trees,
buildings and shadows.
Compatible with truck mods, map mods and sound mods.
Safe to add or remove mid-save.
🔧 Crafted by EXPRESS MODS & TIPS
https://www.youtube.com/@ExpressModsTips
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