Direct Discovery on Ajax performance Difference to Client/IE plugin

[#1]

I have been working with Direct Discovery against Hana and have observed the following:

1.  Client uses qvconnect64.exe and fully utilizes the SET DirectConnectionMax = 20; i.e. opens multiple "pipes" to Hana.  works great!

2.  Distribution service uses the qvconnect64.exe and only opens one pipe.

3.  Ajax client uses QvConnect64.exe and only opens 2 pipes,

4.  IE plugin uses QvConnect64.exe and fully utilizes the SET DirectConnectionMax = 20; i.e. opens multiple "pipes" to Hana.  works well but not as good as the desktop client.

I also noted that when I open an Ajax session and a IT session, they appear to be not sharing the QVconnect pipes.

Can anyone explain why this is happening?

I need to use Ajax and also open multiple pipes for performance.