Of course, I've been making some comparisons. I put a Debian next to Funtoo, the Radeon driver used is the same in its version: 2.49.0. An example of what is happening is that the video seems to be loopy to open or change applications. The use of CPU / Memory seems very similar between systems. But the video response difference is great. To switch screens on i3 for example, I have a delay of almost 1.5 seconds. Being that Debian with the same features works very fast. Could it be something related to openrc? How could I debug this "lag" in the video inside i3? Remembering that both systems are totally clean. Only with xorg, i3 and few applications.
Thank you for you time and help.