Printing here with eSun PLA at 215 C on a Prusa Mini, and there are lots of hairline strings.
What's causing those strings? Temp too low?
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I can't add anything concerning stringing that the other comment didn't already cover, so I'll ask about the gaps.
Have you tried upping the flow rate to fill them in? The other option I've used in the past was lowering my Z Offset if the flow was alright.
Keep in mind that changing your flow rate will likely also cause you have to mess with your retraction settings again.