😩🤦🏽‍♀️help‼️‼️

So my boyfriend and I have been together for a while now. We are sexually active but I have an issue. Lately it’s only been one position and a few pumps later he nuts. How can I improve this? I’ve tried telling him I wanna try new things. I’m not asking him to do anything crazy or any tricks. I’m just asking if we can do more than doggystyle for 5 minutes before he nuts.