The older they get - the longer the breaks in between nursing. But make sure it feeds fairly soon. If not - a drop of sugar water will give it a boost. I don't like to wait longer than 4-5 hours in kittens that young.
Yeah i think that too, awww hes perfect his little eyes are proper cute!, just I noticed today he hasnt suckled than much but as we speak he I suckling good! Soo maybe hes just a lazy kitten haha