VirtualBox very slow compared to Vmware topic

Hi,

I have Xubuntu 14.04 32bit host, where I have installed latest VirtualBox with latest extensions. In it I have Win 7 64bit guest, with 3GB RAM, 2 processors. Everything works great, but HDD operations are VERY slow. When i run HDtune test in guest, hdd speed is approximately 30Mb/s. (booth host and guest are on same SSD on separated partitions) So I made a little test. I have copied hdd content to .vdmk file and run it in VirtualBox. Hdd speed was still around 30Mb/s. Then I have installed Vmware player and created new virtual machine, but then added the same virtual HDD. When I run it in Vmware (similar setup as VirtualBox) and do HDtune test, average HDD speed is around 250MB/s !!! and whole system is much faster.

So how is this possible? I still would like to use VirtualBox, because it seems to have better USB devices support and I have some network issues in Vmware too. Thank you for your answers

Steam on Linux very slow compared to Windows topic

So I recently installed Xubuntu 14.10 and I installed steam but when I load a game even the start menu for the game is lagging at like 10 FPS and in windows playing the game was about 60 FPS any suggestions would be great
If you need me to put my information down tell me