XenoFalconM2

I'm making a custom modpack to play with my brothers on a LAN world and have them download the exact same modpack. When I load into the world the first thing I notice is extreme block update and entity lag. Here's the curseforge modpack profile code: x-Ks0X75 Here's the link to the spark profile I ran for a bit: https://spark.lucko.me/8DGqRZRYel Could someone let me know which mod(s) are causing the issue? Seems like one or more datapacks are looping a function. I'd also really appreciate tips on the performance mods I'm using and if there are any conflicts/redundancies. Mod suggestions are also more than welcome for performance. How does LAN hosting compare to server hosting in a performance sense?