Dear DynamicWeb,
It appears that the setting /Globalsettings/Ecom/Picture/Patterns/UseCaching is deprecated, yet it is still actively referenced in classes such as ImagePatternManager. In our experience, enabling this setting is crucial for achieving acceptable performance when working with a large number of images.
Given its continued relevance, I suggest one of the following:
- 
	
Default the setting to
true, as long as it is still being used internally. - 
	
Expose the setting in the administration UI, so it can be managed more easily.
 - 
	
Fully deprecate it, but ensure that the underlying performance benefits are preserved.
 
Looking forward to your feedback.
Best regards, Anders