I started a minecraft modded server with Tekxit 3 Official modpack (lanched with technic laucher on the client) to play with few friend like 3-4 but when we had join in the game there was a absurd lag on everything from block to entitiies!
There is a delay of 2-3 seconds to destroy a block of stone with an iron picaxe!
All of us have Minecraft java edition bought so not a cracked problem, and our ping was always green full!