4mth fussing at bottle

It's been very challenging getting my 4mth coming 5mth to drink recently. He used to drink 150ml every 3.5hrs. Now we feed at 5hrs sometimes he still fuss and makes alot of noise when bottle is near. For a start, he bites on the teat, suck for awhile then he pushes the bottle away w his hands and tongue. We changed teat size also and it doesn't seem to help much. Thought is a leap, but his leap 4 is somewhat ending. Can I start him on puree? Anyone has same experiences and able to share? It's getting so exhausting.