Great latence when doing performance test

[PirateGX]

when I use single or multi thread to call our service，it works correct。
But now we have a interface that will push back lots of data with an event which has about 4M text，then when I use multi thread to call it，I found great lantence in my client。

I think it may be due to the limit of my PC’s i/o or network，but when I move the client to a powerful server，no changes with it。

I have confirmed that the root cause is the data is too amount，but it must achieve like that.

So I try to find out a resolution that make client reject to recieve data from that event.Is anyone know how to do that or how to resolve this performance problem?

Thanks a lot.