Super Fast Image Loading for Android Apps with GlideX issue

I had added this Nuget package to my project after that my page images are getting large size. i am using Visual studio 2017.

This is the example i have followed

https://channel9.msdn.com/Shows/XamarinShow/Super-Fast-Image-Loading-for-Android-Apps-with-GlideX?fbclid=IwAR35paQAq0bqQnfRH3H25VGtNj4RhLSrdkzER2Cey4AGCttEDyfxfek7Uk0

Installed nuget pakchages are
1. glidex
2. glidex.forms