Just looking at entangled chest in REI reduces fps to 10-15, placing block in the world also reduces fps from 60-70 to 25-30 (disabling shaders didnt help, using iris, sodium, indium, sodium extra)
modlist.txt

If you don't have a spark mod installed, then install it.

After installing it, use next command to start a profiler:

/sparkclient profiler start

Place entangled chest in the world, wait 5~ seconds, and then stop the profiler:

/sparkclient profiler stop

spark will stop the profiler and send profiler link in the chat, share this link here.

Sorry for delay,
https://spark.lucko.me/QQg5aYKxVc