Possible modifications for next iteration

(1) Author showing on search results

It would be good to be able to remove this from the search results (it is irrelevant for example if an admin loads data).

(2) Comments

Comments are excluded across the site. It would be good to be able to remove these from the drop down menu of ways of sorting results.

(3) Is it possible to make the search box bigger as it is quite small at the moment (so more like a Google search box that is intended to take longer strings or words)

https://www.ads-software.com/plugins/wpsolr-search-engine/