I would need to see the params to really tell, usually noise can be remedied with lower Raystep Multiplier and Stepwidth Limiter settings but Lighting settings can cause noisy looking artifacts too. The Jaggies are a different story, they are usually due to the fact there is no Antialiasing in the MB3D Render Engine, the only way to get AA is by Rendering Large and saving the Image at a smaller size, the downsizing does a 2 or 3x AA when downsizing, either that or Postworking the Jaggies out that's what I do. The Monte Carlo optional Render Engine in MB3D has on the fly Antialias built in but it's is also very slow.

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