Filter Gallery Default Preview Size -- Change Default?

The Filter Gallery preview defaults to 100% image size which is not usable for many large raw and .psd images. The preview shows just a tiny scrap of the image.

Could it instead default to "Fit in Window" rather than "100%"?  Or perhaps remember the previous setting?

My workflow would be so much better if I were not constantly re-setting the preview size as I open Filter Gallery