You definitely have some underextrusion on those side bars. I'd also print slower. Don't print any cooler than 210 if you are going at 50mm/sec. I'd stick with current temp (or even raise it to 220C but 210C is usually fine if your temp sensor is accurate) and slow it down to 25mm/sec for either the whole print or at least the problem area.
There is a speed/quality tradeoff. I you want better quality then go for slower printing.
I guess you had a lot of stringing before you cleaned the print. That was a serious material loss which caused the underextrusion. Try to print more slowly and cooler if not for the whole print then for this section. You may use the TweakAtZ plugin for that purpose.
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