I have three angelfish in a 110 tall, they don't mind the current at all. Plus, moss and loose plants cover the intake, which helps. Actually, you should worry more about that than the output. That's why I don't clean my intake, had a fish get stuck to it after I cleaned it one day. It was a 5in fat healthy fish, it shouldn't of gotten stuck.
I have mine with one output director vertical slit against the short wall. The other is horizontal pointing in front of it, front wall. Hose is in the rear left corner, 5 inches below the surface of the water. Only about 1 foot around the output is the current a bit too much and the Angels avoid.
Oh, a sponge over the output may also buffer it some.