Not really. You can try adding the following stuff, but it's really derpy and doesn't work too well, but it does something at least. I haven't bothered trying to figure out what's making it so finicky. Perhaps you can see if you can make it work better?
Wellness Multiplier:
Location: -/EntityStats/AccumulateWellness(Single): Void
Insert at the very beginning of the method:
ldc.r4 // Operand Type of Single; Operand of 0.
ble.s // Operand Type of Instruction Reference, Operand of line 002. (The instruction originally at line 000; ldarg.0. Once everything is inserted, it should be at line 007.)
ldc.r4 // Operand Type of Single; Operand of desired multiplier.
starg // Operand Type of Parameter Reference; Operand of 0 value (System.Single).
I don't have something for the ping, but see if you can figure something out yourself. To get started, try looking under:
-/NetPackageClientInfo/ProcessPackage(World, INetConnectionCallbacks): Void
-/NetPackageClientInfo/.ctor(WorldBase, List<ClientInfo>)
as well as looking at the variable -/EntityAlive/pingToServer: Int32
Best,
Sqeegie