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PMP4259: Boost inductor current waveform

Part Number: PMP4259

Hi TI expert,

I'm working on my PFC boost converter prototype based on PMP4259. I have reached to the point that I can supply up to 50% of maximum load (3KW) but PF is lower than my expectations. Below I share voltage (yellow) and current (pink) of the boost inductor for one phase and I assume in some portions it has weird waveform which most probably is responsible for low PF (87% @ 20% of L_max). Can you comment on these waveforms?

Thank you for your time.