I've seen the last few episodes now. Wish some one would tell them "Just because it is Sci Fi you DON'T have to do time travel".
Now the temporal accelerator (decelerator too maybe?) has military applications. Put one on the Orville's power plant and if you double the time rate you double the output power (from outside the power plants viewpoint). Same for using with energy weapons, your megawatt laser might not be able to handle an overload without melting but increase its time rate (and power supply) 10 fold and it becomes a 10 megawatt weapon. You can simplify this by accelerating the whole ship. Even your crew does everything at the time multiplier in battle 2x, 10x or even 1000x.
If you could project decelerated time on a Kaylon vessel (reduce to 1%) from their viewpoint your weapons just went to 100 times as powerful and crushes their defenses.
This is one of the things the last episode of Stargate missed.