I have the same problem.
Avorion: 0.25.2
OS: Arch
Kernel: 5.2.9
top output
top - 20:14:04 up 8:24, 1 user, load average: 2.25, 2.02, 1.86
Tasks: 286 total, 2 running, 284 sleeping, 0 stopped, 0 zombie
%Cpu(s): 11.1 us, 4.9 sy, 0.7 ni, 71.7 id, 8.5 wa, 0.8 hi, 2.2 si, 0.0 st
MiB Mem : 15989.8 total, 185.5 free, 5033.4 used, 10770.8 buff/cache
MiB Swap: 3906.0 total, 3904.2 free, 1.8 used. 10593.5 avail Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
22180 rfvgyhn 20 0 5640064 1.5g 102148 S 74.4 9.6 20:08.24 Avorion