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Split Test Site Speed Issue

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# 1
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I set up an experiment to split test an image on the landing page. When loading the test in preview mode, I noticed that version with the new image still loads downloads the original image even though its not visible. This means that the site speed for the test is slower than the original.

I've come up with a work around by creating a third test, that replaces the original image with a duplicate of the original image. This ensures that both pages are loading equally slower. I split the traffic and it looks something like this:

2% of traffic - Original

49% of traffic - Original Image

49% of traffic - New Image

 

Is there a way that when we load an experiment, for it not to load the content that is not in use?