Why does my Motorola Moto G4 Plus charge really slow that there's even a message displayed "charging slow"?

I bought the moto g4 plus yesterday itself...the mobile is working well but I came up with a problem in charging. The phone is charging really slow even when being charged with the turbo charger provided..It is taking almost 4-5 min to charge 1% of battery..( I started charging when my battery percentage was 50% )..and there is a message being displayed saying " charging slow". So please guide me with this problem. Can this be resolved or should I return/replace my phone ?

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