This 1.16.5 Fabric modpack is designed for playing ZymSB's Hunters among Speedrunners datapack, which combines Among us with Minecraft Manhunt.
It includes performance and visual enhancements, proximity chat, and utility mods.
It is fully client side, so if you want a simple 1.16.5 fabric performance and utility pack you can use it for that too ig.
For a smaller and faster option without unnecessary extras, try the Lite Edition.