We are trying to integrate SOCRadar TAXXI feeds via threat intelligence app but after getting some threat feeds like 100K above feeds got stuck during the poll. Can someone help me to resolve this as we contacted vendor as well and they said you guys need to do pagination on the QRadar side. QRadar is unable to handle the API request.

Hello, 

My understanding is that forpagination we need to use STIX and TAXII 2.1. The threat intelligence app currently only supports 2.0:
https://www.ibm.com/docs/en/qradar-common?topic=feeds-adding-threat-intelligence

Speaking internally it would appear that this functionality is to be added in a later version of the App and planned for Q1 2025. 
Regards