DIY circuit with Amplifier LM386

I bought a pack of 10 LM386 chips on Amazon I thought they came defective because never sounded loud and had a popcorn sound. But the way DIY Simple Audio Player with Amplifier LM386 this circuitry is set up works perfect. Where is wrong?

To tell you what may be wrong you would need to upload the Fritizng sketch (the .fzz file) of the circuit you are using that doesn’t work well. From that we may be able to point out the problem. Without knowing how you connected the circuit that doesn’t work there is no way to know what is wrong.