As of August 2022 I have dropped most mods that I was using, retaining only "Who's The Ai Bots?" and "My Precious". I believe this has led to an improvement in hit registration as my GPU is processing the game rather than mods.
(Discontinued) Main mod pack was Hakamod: https://hakamod.blogspot.com/2018/02/hakabase-modpack-for-wowp.html
I have in the past used Dr. Sinister's mod pack to colour my bullets and tracers: https://crzyhlfazn.wixsite.com/repository/download
I used to use a Grandpa mod for bullets and tracers. Grandpa is a collection of mods without an installer and therefore not a mod pack as I would define it. http://forum.worldofwarplanes.com/index.php?/topic/52317-grandpas-all-in-one-aio-and-other-mods-2130/page__pid__726872#entry726872
The statistics you see in the top left corner of battles are provided by the "My Precious" mod: http://myprel.ru/