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Slay the Spire 2 · Troubleshooting Guide · Lag & Latency Issues

How to Fix Slay the Spire 2
Lag

If Slay the Spire 2 is lagging, stuttering, or rubber-banding, follow these steps in order. First confirm the lag isn't server-side by checking the live status page — if dozens of players are reporting issues, Mega Crit's servers are the cause.

General Guidance Only

These steps are provided for informational purposes only and may not reflect the latest game updates. Port numbers, menu paths, and settings can vary by platform and version. GamerOutage.com is not responsible for any outcomes resulting from following this guide. When in doubt, refer to the publisher's official support site.

Step-by-Step Fix

1
STS2 has no online servers — this is a PC performance guide
Slay the Spire 2 is a single-player game with no real-time online servers and no network latency component. "Lag" in STS2 means frame drops, stuttering, or slow card-animation response — all of which are local performance issues. The steps below optimize your PC for smooth STS2 performance rather than fixing network connectivity.
2
Lower graphics settings in-game
In STS2 settings, reduce the rendering resolution and disable any post-processing effects. The game is not graphically demanding, but lower-end integrated graphics can still struggle at high settings.
3
Close background applications
Close browser tabs, Discord, Spotify, and any other applications running in the background. STS2 is a Unity game and competes with other processes for CPU and RAM.
4
Set game priority in Task Manager
While STS2 is running, open Task Manager (Ctrl+Shift+Esc) → Details tab → right-click on the STS2 process → Set Priority → High. This allocates more CPU time to the game.
5
Disable Steam overlay
The Steam overlay adds a rendering layer that can cause stuttering in Unity games. Go to Steam → Settings → In-Game → disable "Enable the Steam Overlay while in-game" and relaunch STS2.
6
Ensure your PC is not on a power-saving plan
Go to Windows Settings → Power → select "High Performance" or "Balanced" plan. A power-saving plan throttles your CPU, which can cause stuttering in any game including STS2.
Is it server-side?
Check real-time player reports — if reports are spiking, it's on Mega Crit's end, not yours.
Check StS2 Status →

Frequently Asked Questions

Why is Slay the Spire 2 stuttering?

Stuttering in STS2 is usually caused by background applications consuming CPU/RAM, the Steam overlay adding rendering overhead, or Windows running a power-saving CPU plan. Close background apps, disable the Steam overlay, and switch to a High Performance power plan.

Why does Slay the Spire 2 run slowly on my PC?

STS2 runs on Unity and has relatively modest system requirements. If it runs slowly, check that no background applications are consuming resources, your PC is on a High Performance power plan, and your GPU drivers are up to date.

Does Slay the Spire 2 have multiplayer lag?

Slay the Spire 2 does not have real-time multiplayer, so network lag is not applicable. Any performance issues you experience are local to your PC rather than server-related.

More Slay the Spire 2 Fix Guides

StS2 Login Fix →StS2 Crash Fix →StS2 Can't Connect →
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