Hi all, I'm experimenting a W25Q256FV 16-pin SOIC 300-mil on Audio shield Rev B (on teensy 3.6, clock 240MHz), in order to store audio files to be played. Actually I have connected the flash chip with short wires:

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In write operation I never experimented issues, while reading I've (really NOT frequent) problems (reading errors maybe?): anyone can help me to go a bit deeper and maybe understand what is wrong? Maybe I could try adding a decupling capacitor between Vcc and GND pins close to the chip...

I have also designed an adaptor:

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but... before making it I'd like to hear some opinion/tip.
Thanks a lot for any idea!