addressing more comments.

Author: gpx1000

en/Building_a_Simple_Engine/Mobile_Development/03_performance_optimizations.adoc

@@ -248,11 +248,6 @@ Different mobile GPU vendors have specific architectures that may benefit from t
 
 Different mobile GPU vendors have specific architectures that benefit from targeted optimizations:
 
-* *GPU Technologies*: Many vendors implement custom GPU technologies to improve performance and power efficiency:
-   - Maintain stable frame rates rather than pushing for maximum frames
-   - Avoid unnecessary GPU state changes
-   - Use efficient rendering techniques appropriate for the GPU architecture
-
 * *Memory Management*: Many mobile SoCs have unified memory architecture:
    - Use `VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT | VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT` memory when possible
    - Take advantage of fast CPU-GPU memory transfers in unified memory architectures