Preheat the grill to high heat.
Season the swordfish steaks with salt and pepper, and drizzle with olive oil.
Grill the swordfish for 4-5 minutes per side or until cooked through.
While the swordfish is cooking, prepare the mango salsa by combining diced mango, red onion, red bell pepper, cilantro, and lime juice in a bowl.
For the avocado crema, blend together avocado, sour cream, cumin, garlic powder, salt, and pepper in a food processor until smooth.
Serve the grilled swordfish with mango salsa and avocado crema on top.