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		#16 | 
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			 Grand Sorcerer 
			
			![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Posts: 7,011 
				Karma: 27060353 
				Join Date: Apr 2009 
				Location: USA 
				
				
				Device: iPhone 15PM, Kindle Scribe, iPad mini 6, PocketBook InkPad Color 3 
				
				
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			Added 300+ books from my Kindle library. Took calibre about 1m 5s to finish sync. This also doesn't seem to be problematic. 
		
	
		
		
		
		
		
		
		
		
		
		
		
			It looks like the performance issues involve side-loaded books. That will be subject of my next experiment. Last edited by tomsem; 06-03-2024 at 10:08 AM.  | 
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		#17 | 
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			 Grand Sorcerer 
			
			![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Posts: 7,011 
				Karma: 27060353 
				Join Date: Apr 2009 
				Location: USA 
				
				
				Device: iPhone 15PM, Kindle Scribe, iPad mini 6, PocketBook InkPad Color 3 
				
				
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			Added about 250 side loaded books. I'm still not seeing any significant performance issues when calibre connects and syncs. It just takes a minute or so.
		 
		
	
		
		
		
		
		
		
		
		
		
		
		
			Last edited by tomsem; 06-03-2024 at 10:46 AM.  | 
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		#18 | 
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			 Junior Member 
			
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				Join Date: Mar 2025 
				
				
				
				Device: kindle 
				
				
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			For me, the solution was to remove the Android File Transfer app from the login items list in the MacOS settings, first (step 0: make sure that the app isn't running). Then, to launch the Calibre app, and only after that to connect my kindle.
		 
		
	
		
		
		
		
		
		
		
		
		
		
	
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