"Who the hell are you!? What are you doing here!? Guards! Guards!"
One of the people sitting at the table immediately stood up and shouted angrily. He was shocked by the sudden appearance because he didn't even see the girl move! The man just saw a flash of lightning before there was someone sitting on top of their table, and that freaked the hell out of him! He called for the guards outside to come and get rid of the girl, but he remembered that Mark had beaten the shit out of them before coming in here, and he just decided that it would be better to take a few more steps back.
They didn't pay him enough to deal with this much shit. First, he was removed as a member of the board, and now this? If this is how things are going to be when Mark takes over the company, then maybe it is better for him to just leave the company on his own. He is just a normal human, so he can't deal with all his superhuman nonsense!
Now about the power limiter. You all will admit that Mark has been subconsiously holding back against multiple oppoenents recently. Mark is someone that enjoys the thrill of battle, and after the island raid, he realised that he would enjoy a batle more if he reduces his power to a level where the opponent wouldn't just be one-shotted by him.
After doing this multple time, the system finally noticed it as well and began measureing the amount of power that Mark was releasing so that Mark would know exactly how much power he was using against an opponent.
P.S. Mark only does this against opponents that are weaker than him or if he meets an opponents he thinks he wil have fun fighting against. In a more serious situation, Mark does not hold back.