Eagle CAD autorouter places tracks too close to vias
If you think the tracks are 'too close' to the vias, in a way that will cause actual problems, then there is a problem with your design rule configuration.

However, if your issue is just that there is no reason for the tracks to run so close to the vias, and a sensible person routing them would have chosen differently: Yes, welcome to the autorouter. My understanding is that professionals never use it, but always do routing themselves. I've honestly never heard anybody suggest that using it is anything but a bad idea. I would recommend that you practice doing the routing yourself, instead; you'll get better results.