Emotional turmoil

From there things were much easier, only Eldrian found that half an hour was not a short time. He had thought it would be easy to hold out so long, especially once he managed to tap into whatever his time dilation ability is.

Instead, that was the thing that made everything extremely difficult. By the time he was surrounded by four holograms, his previous record, only twenty minutes had passed. Fighting through the grogginess and trying to clear his vision, Eldrian did his best. Ultimately dying just shy of thirty minutes, luckily this was good enough as the system counted it as a success. 

Waking up gasping for air on the chair, Eldrian felt like cursing even more. He just realized how truly shit this was going to be. By the thirty-minute mark, his mind became confused, his vision blurred and his focus spread thin and throughout. This made the killing blow all the more painful and unexpected.