Modding SH3 on a 13 year old laptop

I have until recently used Blender 2.75 on 13 year old laptop – just about every function you need for modeling ships for Silent Hunter games works like a charm, only thing I had to be careful about was AO texture baking (still possible but I had to set limit for processor usage by Blender to avoid baking my laptop instead of a texture).

AI Bot running SUBSIM, what could go wrong?!