Q: rendering on FCP

Hi,

I have to render video on FCP 7 but it takes so long time... Opening monitor activity, FCP is only using 23,7 % processor.

How can I force FCP to use 100% processor?

I try to do quickcluster through Qmaster, but only Compressor is using full processor...

Can you help me? Thank you soo much... Reynald

My machine:

FCP 7.0.3

processor 2 x 2.66 GHz Dual-Core Intel Xeon

LION 10.7.5