Markus and Alena did not continue to fight for that long as both of them already realized that they already destroyed their surrounding area and this could also reach the safe zone if they continued like this.
Because of this, sometime later both of them stopped Sparring and decided to end the fight. But all this time you have to say Markus became familiar with his new strength. You already realize that whenever he uses his technique he can bring out more power compared to before.
Naturally, as the spiritual energy suddenly becomes stronger the control over the spiritual energy already decreases. With this, he was unable to bring out the full power of any of his techniques.
But that will not be a big matter to him as he already decided to focus on regaining control over the spiritual energy. With these both of them already teleport back to the training room where Sam and other Saints are still present.