On display entities, any new Pos/Rot packet causes the teleport duration interpolation to reset
While this does not cause issues when you spawn a display entity -> set the interpolation -> teleport after the data has been sent to the client, this DOES cause issues on entities that have lived for >60 ticks, where if you spawn a display with interpolation -> wait ~8 ticks -> teleport it, the end of the teleport will look slow due to the server resyncing the display entity position/rotation