please help me with car test before i buy it

its mitsubishi lancer 2007, executive 1.6 engine, 100 thousands km on its speedometer.


i've tested it in authorized place before i buy the car and it says in translataion from my language the following:
Low compression pressure, compression pressure is not the same. Rubber has the valves. Coordinate engine.


how bad is it, in your opinion?
thank you.