Use the mixer don't rely on the presets.
When you get some cash get the classics or Nashville expansions. The kits are a lot nicer and more options.
Put the cymbals where a real drummer would. Most of us non-drummers sucks at this.
Use the grooves and modify them, for your track. Trying to build the, from scratch will likely sound more artificial. But, do modify them. I rarely find a groove with the perfect kick for what I'm doing.
Drop the room mic to zero with the pop rock kit, and down about 75% with the classics and Nashville expansions. Mix the drums yourself and play with the bleed switches.
Play with the different snares and cymbals to see what fits your song.