Reflektor CPU load almost double that of other convolution reverbs?

I've been trying to figure out what's been causing my CPU spikes in Live 8 and arrived to the conclusion that it might be Reflektor

I usually have two in all my projects, one with a plate impulse and the other with a hall

today I noticed that a a single one can cause Live to spike up to 10% in the audio engine meter, and it's very spikey jumping around from 5-10% randomly and sometimes even higher

I downloaded the demo for Mellowmuse IR1A to see if maybe that's just a convolution thing, and ends up that IR1A uses around half the resouses never spiking Live above 5%

so to make sure that is wasn't a Live thing, I moved over to Logic Pro 9 and fired up Reflektor, IR1A and Space Designer

both IR1A and Space Designer seem to use around the same amount of CPU and Reflektor spiked to almost double that

the weidest thing is that I'm not even using the "HI" setting in Guitar Rig.. flipping that on makes it run even double as heavy on the CPU

 

I know this is a pretty old thread at this stage,but ive also had issues with reflektor since day one.In fact,ive never been able to use it if im being honest.It just hogs the cpu,with crazy spikes and causes crashes.I got it in the komplete 8 ultimate bundle a few years back.Surprised they never released an update to fix this.I actually think it sounds great.Shame i never get to use it.