Having the mod installed seems to generally cause a reduction in frame rate compared to it not being installed, even with performance mods installed, even in the Overworld. It isn't significant for me at least, but it is definitely there.
Spark profiles:
https://spark.lucko.me/Zd9DUjyOsP (client)
https://spark.lucko.me/mVDudY00LP
https://spark.lucko.me/fR3cCgRoEN (server)
https://spark.lucko.me/PEV9EwHfGD
Having the mod installed seems to generally cause a reduction in frame rate compared to it not being installed, even with performance mods installed, even in the Overworld. It isn't significant for me at least, but it is definitely there.
Spark profiles:
https://spark.lucko.me/Zd9DUjyOsP (client)
https://spark.lucko.me/mVDudY00LP
https://spark.lucko.me/fR3cCgRoEN (server)
https://spark.lucko.me/PEV9EwHfGD