The Falcon comes out of hyperspace on Starkiller base and is moving at roughly airplane like speeds from the movement over the terrain we see. Im betting most of the speeds we see in star wars are visually WAY off than what they should be. Moving at stellar speeds is too fast. You'd probably end up just seeing a blur if ships were moving at the speeds written in various resources (tech manuals and the like). This isnt just a star wars issue but likely a general sci fi issue.