I think this is not to worry.
But you should work on why your IR score is low this means you have data analysis issue .
Somehow this may be a challenge when you go with analytics and interpretation related subjects.
Good luck and as mentioned above by one of our mate he got LBS .
You can get a good school this depends on many aspects of application GMAT is one part of it .
Posted from my mobile device _________________
Madhuraj Mishra
Admission consultant
And Gmat roadmap guide
Student
EMBA
London Business School
Email
MadhurajMishra@gmai.com