some traffic of xdr requests is killing performance of the submit interface.

[arm2arm]

Dear daiquiri developers,
I am accounting some problems on the gaia.aip.de web interface.
The query submission interface is very slow, sometimes impossible to type or scroll the large ADQL questions in the submit form.

1. In the chrome task manager I discovered that the cpu usage is about 15-20% only for gaia.aip.de.
2. Second observation is the xdr request every second downloading about ~200KB per query
   

This appears on gaia.aip.de when user logged in with the lot of archived or normal tables, generated by pyvo.