Why someone is decreasing his network 100x with intention is out of my logic anyway as i thought the
more hashrate on a network the faster and more secure .......
Your original assumption is wrong, hence it is out of your logic. The more hashrate on a network, the more secure the network is. Not faster. Blockchain difficulty is always adjusted so that each block happens in nearly regular intervals. For BTC it is 10 minutes, for LTC it's 2.5 minutes and for ETN it's 2 minutes. The block time interval is fixed. It can't be faster.
If you wish to be able to process more transactions per block, you have to find another way -- e.g. fit more transactions into each block (by increasing block size, removing overhead...). And the ETN team is doing exactly that with this update.
Give the blockchain a chance to adjust. It may take a few hours. After that it will work faster than before the fork.