warn the user about the dangers of gpu overclocking, stop suggesting to crank up sliders in corectrl

content/docs/performance/_index.md

@@ -19,11 +19,18 @@ You should add a kernel arg for `amdgpu` driven cards. Add `amdgpu.ppfeaturemask
 
 ### The simple way: Use CoreCtrl
 
+{{% hint danger %}}
+**BE CAREFUL**
+
+CoreCtrl is an **overclocking** utility. Overclocking your GPU is potentially dangerous and if done without care it could **permanently damage your hardware**.
+
+If you limit yourself to setting the power profile you should be fine, but don't just crank up the sliders.
+{{% /hint %}}
+
 - Install [CoreCtrl](https://gitlab.com/corectrl/corectrl)
 - Select your GPU on the top
 - Set Performance mode to Advanced
 - Set Power profile to VR
-- Set the GPU and Memory sliders to max
 
 ### Enable VR profile using a script