Single flute is really the only option to get reasonable chip sizes in wood. I’m not sure about Aspire (I also have a copy so I could check it out) but EstlCAM will calculate chip sizes based on your router speed (RPM), feed rate (mm/s), and flute count. This sounds like another complicated thing to figure out, because it is, but it’s what will keep your bits sharp and your machine cutting well! Check out my thread here on the topic, it’s for EstlCAM but the info applies anywhere: Useful 'comment' section for tools - #2 by ClineDesigns
There’s lots of talk about bits and sooo many options for sale, but IMO you can get by with a 3 mm 45 V bit (carves and engravings) and a 3 mm single flute up-cut (slotting/profiling/part cutting). You can also use the 45 V for chamfers by “engraving” along the DXF lines. Then a 6 mm up cut makes roughing a lot faster, and a 3 mm down cut makes finishing passes silky smooth, but those are both “luxuries”. Others may disagree on the types of bits you need vs want, but my focus here is to make it as simple as possible 
. Also you want to keep a backup bit of each type in case you hit a hold down/screw or a deformity in the wood and break a bit, it happens to everyone eventually!