Update README.md

README.md

@@ -15,16 +15,21 @@ Driver layer GPU libraries and tests for PSP2
 7. OpenGL ES v2 port for PSP2.
 8. Various unittests to check basic driver features.
 
+# Usage specifics
+
+- Check default apphint values before running your application and make sure everything is at expected values.
+Default apphint values can be found [here](https://github.com/GrapheneCt/PVR_PSP2/blob/main/gpu_es4_ext/eurasia/services4/srvclient/env/playstation/common/pvr_apphint.c#L501)
+
 # Known issues
 
 ### GLES1:
 
-1. GLES1 and GLES2 libraries upload textures to separate GPU memory on demand after validation. That increases memory consumption by 2 and may cause slowdowns.
+1. GLES1 and GLES2 libraries upload textures to separate GPU memory on demand after validation. That may cause slowdowns.
 - Required solution: render textures directly from intermediate memory.
 
 ### GLES2:
 
-1. GLES1 and GLES2 libraries upload textures to separate GPU memory on demand after validation. That increases memory consumption by 2 and may cause slowdowns.
+1. GLES1 and GLES2 libraries upload textures to separate GPU memory on demand after validation. That may cause slowdowns.
 - Required solution: render textures directly from intermediate memory.
 
 2. Major slowdown during vector instruction optimizations in GLSL shader compiler, specifically GenerateVectorDualIssue() function.