The number 189 is not magic. It is an empirical sweet spot identified by IPTV forum users in 2018 for reducing multicast latency in bridge mode. By forcing aggressive MAC ageing and lowering fragmentation, you sacrifice a small amount of TCP throughput for a massive gain in UDP responsiveness.
Inside the .minecraft folder, look for a folder named . If it doesn't exist, simply right-click and create a new folder named exactly mods (all lowercase). Step 3: Install the Mod