Here are the relevant lines of your paste, where %CPU is not 0.0. These are all normal processes that would be active during a typical user login session. It does not look like you have anything to worry about.

USER       PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND

root      1187  8.7  0.4 196172 38552 tty7     Ss+  14:07   6:31  _ /usr/bin/X :0 -core -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch -background none

deus      1995  4.6  1.2 1480928 96744 ?       Sl   14:08   3:25          _ compiz

deus     30695  1.5  0.2 607076 19668 ?        Sl   15:21   0:00          |       _ gnome-terminal

deus     30702  0.1  0.0  26168  3200 pts/0    Ss   15:21   0:00          |           _ bash

deus      2015  0.1  0.5 1020772 45468 ?       Sl   14:08   0:05          _ nautilus -n

deus      2426  0.1  0.1 517176 14152 ?        Sl   14:09   0:06          _ update-notifier

deus      1972  2.2  0.0 365604  6776 ?        S<l  14:08   1:41 /usr/bin/pulseaudio --start --log-target=syslog

deus     30029  5.3  0.3 553456 30216 ?        Sl   14:59   1:12 gnome-system-monitor