Create multiple WT performance issue in EWM

Hi Experts,

In EWM, one Inbound delivery with multiple materials (more than 300 items and packing more than 1000 HUs) need to be putaway with warehouse tasks. System took more than 3 mins to create WTs. Our client think this performance cannot be accepted.

Who can advise how to optimize the system to create WT in EWM? We are using EWM standard function to create WT for putaway.

Thanks,

Julia