In Sparkle online help, under Middlewere section
https://doc.tmssoftware.com/biz/sparkle/guide/middleware.html
You'll notice a duplicated paragraph about the Compress Middleware right after Forward Middleware
Setting a threshold
TCompressMiddleware provides the Threshold property which allows you to define the minimum size for the response body to be compressed. If it's smaller than that size, no compression will happen, regardless of the 'accept-encoding' request header value. The default value is 1024, but you can change it:
Regards,