Electrum-server used 5832 seconds to process one block! This is a bug. Not a slow processor.
I wouldn't say that it is a bug, but instead, not optimized for slow processors, or bloated blocks, full of useless UTXOs that the Bitcoin spammer is currently injecting in the network today...
... over 50k transactions are in the waiting room at the moment, waiting to be included into a block...
https://chain.so/BTCIf senders didn't put at least 0.0005 BTC per kb, as transaction fees, the waiting time to be included into a block is... 16h
One of those transactions is mine. I sent it from my Bitcoin Core 10.2 wallet with the default transaction cost. I believe this was a bug, with less than 1000 Satoshi's as fee. It has been sitting unconfirmed for 24 hours. I am sure that lots of other people are in the same boat. About the only way to put it is, "Bitcoin is experimental. It is not ready for production use by normal people." These problems will either be fixed or bitcoin will cease to exist.