i thought the cause is might be i should increase the ram and the processor so i have increased the GW to 1gb ram and the WS to 2.5gb ram and gave it 2 core processor = the same thing. also i have installed the nvidia graphical card reader on debian jessie thought the problem might be fixed but it was the same, what should i do to make it work properly ?
The vm specs are good enough and anything more would be a waste. The slowness you are feeling is because the virtualized graphics stack is not as good as can be and delays the image output. This will change when paravirtualized graphics (virgil3d) become part of KVM in Debian Stretch.
(I ship ws with 2 cores already doesn’t it appear when you first import the vm?)
1- tor browser start up page in whonix , whonix pic very messy (only in kvm).
Yes I saw it too and reported it but found it was KVM only. Its another problem with the graphics stack like I said.
2- the two black sides on the right and left of the screen when maximazing the window to fullscreen
You can adjust the resolution by going to:
Display and Monitor → Screen icon with four arrows-> Pick host resolution
We tried shipping Whonix with a larger default resolution but unfortunately there is no foolproof way to configure settings on KDE.