The Verge blocktime is 30 seconds. The difficulty algorithm is designed to ensure a block is found at this consistent interval. To me it's starting to look like WTM isn't using the correct current difficulty for blake2s. We just don't know how the Verge devs manage difficulty across multiple algos. I completely admit this is getting into shit that's way beyond my level of expertise  but it appears to me we're all experiencing a rapid rise in difficulty that's not being shown to us when we check WTM, ergo a bunch of pissed off miners.