Need information on Quality Center Performance

We are planning to setup project in Quality Center & use BPT aswell. KIndly let me know whether the performance of Quality Center will go down becuase of the

statistics given below. Your input may help me to decide on the strategy.

Total number of Requirements expected: 2000
Total number of scenarios expected: 5000
Total number of test cases expected: 15000
NUmber of users: 120
Number of concurrent users: 50+

Quality Center will be used by different teams in different countries.
Your response is much appreciated ......

hi,

This is not reply to your question , i need small help..

I have worked on QTP and QC but i didn't work on BPT...i gone through BPT tutorial but missing some linkage..

If you already tried BPT, i need help in setting login component..

Could you please let me know?

thanks
gsg