Some tools from the mainboard vendor Asus, e.g. the 'Asus AI Suite', have quite an unusual and very unpleasant impact on CyberGhost VPN connections by slowing them down extremely.
These tools are installed when setting up an Asus mainboard and should provide the user with possibilities to fasten up his or her computer. We don't know yet, how software meant to tweak CPU and other system settings in the first place, should be able to accomplish such things, but it repeatable happened. For example one of our customers had been slowed down from 21 MBit/s to 300 kBit/s and got the missing speed back after ending the Asus service.
Our advice to everybody having a slow CyberGhost VPN connection and running an Asus tool is to deinstall the Asus software completely. No harm is done and in most cases the tools are senseless anyway.
We are sorry for an inconvenience like this, but we can't force Asus, as the source of these connection problems, to rewrite their software ...