I was looking for a very optimized modpack a few days ago and with several boss elements like Twilight and thaumcraft that I wanted with a friend to finish, it is not too loaded so that it can run on weaker computers, since I am a old user of aternos playing practically since its development, I would like to have this modpack to play with some friends and so that more people could play together. 
LINK: https://www.technicpack.net/modpack/cozrpg-evolved.984365, plz add ;w;
ps: 1.12.2 MOD