Describe the bug

When using a crafting table, the items have a very weird tick lag which makes them take a while to get placed on the inventory slots and stacked up, and the crafted item also takes a while to appear (around 0.5 seconds maybe?).
Please note that a new instance was created for the latest ROTN version on Prismlauncher. Also, this bug definitely did NOT happen on the previous version.
Tried this:
Changing the amount of RAM allocated.
Trying some java arguments.
Switching JAVA version.
Re-installing the instance.

To Reproduce

Open the game. Use a crafting table. Move around some blocks. Voila.

Expected behavior

TPS (Tick per second) delay when using a crafting table.

Screenshots

https://www.reddit.com/r/feedthebeast/comments/1m8kara/how_to_fix_this_tps_lag_on_singleplayer_rebirth/
I recorded that video and uploaded it to r/feedthebest to see if someone could help me.
https://spark.lucko.me/uY45fMnuj2
This is the Spark profile I made. The very last thing I did right before stopping the program was reproducing the issue, if thats relevant.

Modpack Version

Other

Server or singleplayer

Singleplayer

Version the world was created on:

Other

Other...

Latest modpack version.

Additional context

No response