RAM seems okay. Also did a reboot, with no result:
top - 17:53:16 up 18:54, 1 user, load average: 0.10, 0.09, 0.09
Tasks: 119 total, 1 running, 118 sleeping, 0 stopped, 0 zombie
%Cpu(s): 0.2 us, 0.5 sy, 0.0 ni, 99.3 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
KiB Mem: 8388608 total...