Lovro

Hello everyone, I have trouble making a blend from palm wax and paraffin wax for candles. The candle burns with very small flame and after few hours it goes off. I have tried different mixtures, from 50/50 to 80/20, but no luck. Anyone has any answers to this? Maybe there is the problem with the wick or with type of palm wax. Candles are 4 day-plastic container type. Thanks.