Is there a problem in ethereum because all of the transaction is very slow. It almost take 2-3 hours before receiving the sent tokens. What is the cause of this issue? is this related to the dump price of eth
The amount of transactions increased very rapidly due to Crypto Kitties. You can see for yourself here (
https://etherscan.io/txsPending), there are many pending transactions and the gas price for successful transaction is changed dramatically (I used GWEI 0.1 before and now you need something like GWEI 50 to get your transaction verified).