Yes, Intelligent Standby List Cleaner (ISLC) actually works, but it does not boost your maximum or average FPS; instead, it prevents micro-stuttering and stabilizes your frame rates.
Developed by Wagnardsoft, the creators of the highly trusted Display Driver Uninstaller (DDU), ISLC is a lightweight, portable background utility. It addresses a known Windows memory allocation bug that causes games to hitch, lag, or crash during extended gaming sessions. How ISLC Works
Windows uses a “Standby List” to cache files in your system memory (RAM) so they can be re-opened quickly later. However, Windows often fails to release this cached standby memory when a demanding game needs it. When your system runs out of active “Free Memory,” the game pauses for a fraction of a second while Windows scrambles to free up space. This latency creates annoying micro-stutters and drops your 1% lows.
ISLC continuously monitors your RAM in the background. The moment your standby list grows too large or your free memory drops below a certain threshold, ISLC forcefully purges the standby list. This ensures your game always has immediate access to raw, unallocated RAM. Who Benefits the Most?
Systems with 16GB of RAM or less: If you multi-task or play heavy, modern games, your memory threshold will trigger frequently.
Games with memory leaks: Titles notorious for poorly optimized memory management (like Escape from Tarkov, Grey Zone Warfare, or older open-world games) will crash or stutter less.
Long gaming sessions: If your game runs smoothly at first but starts getting choppy after an hour, Windows standby accumulation is likely the culprit.
Note: If you have 32GB or 64GB of high-speed RAM, Windows rarely runs out of free space, meaning you likely won’t notice any difference by using ISLC. Recommended Setup Guide
If you want to try ISLC, do not use the default settings blindly. Download it from the Wagnardsoft Official Site and configure it based on your total system memory:
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