Chromecast integration

Samsung Galaxy S8 but could not cast to my Nvidia shield, no option for it so i went and bought a USB C to HDMI and did that, but with this option it would be nice to allow the selection of resolution to 1080 because the quality looks like it is at 560p or 720p out from the phone

https://www.amazon.ca/gp/product/B01M6C49X2/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1