System is getting slow performance

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We have a very detailed tutorial to troubleshoot performance issues.

Troubleshooting System Stutter, Lags, Freezes, and Hangs

Index of FAQ contents: Prologue Primary Diagnostic Steps Hardware Troubleshooting BTRFS Specific Tips Kernel Parameters I/O Schedulers Performance Tuning Packages Troubleshooting Installed Packages Required Information X11 vs Wayland ? Troubleshooting Prologue: Important forum threads regarding this topic to read: Disk IO reaches 100%, causing system hangs Temporary system hangs/freezes when updating Load over the CPU is too High | SLOW Response | Freezing | Hang | Crash If y…

It is long and requires a lot of dedication, but this type of issues cannot be troubleshoted easily.