I've installed Linux Deepin 12.12 in a laptop that powered by Intel Core i5 processor. It run fast and smooth. But this didn't happened when I tried it on an old machine, powered by a Dual Core processor with 2GB of RAM.

Linux Deepin also running slow in VirtualBox. I really like to see in the future release that Linux Deepin can be run in a slow machine, VirtualBox and others. That's all for now. Thanks developers for making this wonderful distro a reality.