also I would love to see a dedicated panel for the cycles settings other than the need to go into options or fiddle with the advanced options in the command line.
Go to Tools >> Options and select Advanced. Search for RhinoCycles.DpiScale and set to i.e. 2 or 3.
In the future there might be a dedicated panel, for now the closest you can come is by either using the Advanced section, or by using RhinoCycles_SetAdvancedOptions.