Halion6 and Abbadon choir spike CPU


I think I have a pretty decent PC and I have never before spiked CPU(Core i7 4Ghz) unless using some really heavy sample libraries at teh same time. But I just stumbled abotu tha Abbadon choir sound in Halion6 and if I play two chords that overlaps it spikes CPU to 100%. Is this normal? Anybody else experience this?