Reported on discord by user [here|https://discord.com/channels/489222168727519232/1064581837055348857/1106346472846397450].

*Description of the issue:*

User "Enzi":
{quote}
hello @daniel-holz hope you are the right one for this. i was stress testing physics a lot and the CreateRigidBodies job peeked my interest. there's a NativeParallelHashMap<Entity, int>.ParallelWriter EntityBodyIndexMap that is very expensive and only used for reading in a subsequent job CreateJoints which is never called when numJoints is 0. removing this saves a LOT of job time so i hope you can find ways to optimize this.
{quote}