They are not tested by Microsoft, so bugs, crashes, or "broken" functionality are common. Alternatives to Custom ISOs
WinUtil by Chris Titus Tech. It includes a “Standard” debloat (safe for gaming) and a “Tweaks” tab specifically for gaming (disable Nagle’s algorithm, increase GPU priority). best custom windows 10 iso for gaming
The performance gains are real: expect and significantly smoother frame times. However, the security trade-offs are equally real. Never use a custom ISO on a PC that handles banking, work documents, or personal photos. They are not tested by Microsoft, so bugs,
: Best for maximum performance in e-sports . It is a very aggressive, stripped-down OS aimed purely at minimizing DPC latency and maximizing FPS. They are not tested by Microsoft