The thing about the reverb fx is the octo is integral to the sound, in fact, it pretty much is the sound. I play though both amp and computer, but either way sounds the same. As far as other effects and presets, I'm pretty sure it lies in the octo reverb, as it does the same with other effects that i have set up to where the octo reverb mix is at 100. From what Im getting so far, it seems like there is no way around this, the octo reverb has that delay built in. I dunno, someone prove me wrong please! But it just doesn't make sense. There doesn't seem to be any specific technical reason why it would be like this.