You're using an 801 atty, which by design operates at a lower temperature then most others. That would be the main reason for your lack of throat hit. It's also the reason why you get such great flavor. But even at 5 volts the 801 still produces a somewhat cooler vapor then others, and still might not do it for you in the throat hit department.
And if you ask on this forum what will be a better atty for
you, you'll undoubtedly hear a chorus of 510 fans saying how good the throat hit is, and you should order a 510 right now. Problem with that, is while it does have a strong throat hit, it doesn't have much flavor. Then you'll get a dozen other recommendations for a dozen different models, by people saying how much they love theirs, and you should get this model instead. Basically, most posters will recommend what
they love to use, with little regard for
your needs. They'll tell you how great the flavor is, and how strong the throat hit is, and blah blah blah blah, it's the best ever, blah blah blah, you have to order one now, blah blah blah. Although they mean well, how many of them have actually used 2 , 3, or 4 different atty's, or even more? At different voltages? How many of those recommendations will come from people who have only used 1, or maybe 2 different models and are fairly new to vaping. Keep in mind, for the most part, a lot of people simply fall in love with their first PV thinking it's the greatest thing ever. Then at some point in the future they move on to something with more oomph.
My point is, you need to find something that is right for you. Something with a better throat hit, but also with great flavor. Because after using the 801, you are spoiled by how good some of those flavors really taste, and you shouldn't have to give that up, to find what you want. If you're lucky, maybe an 801 at 5 volts will do it for you, but consider this a heads up, that it might be time to look at other models, and what they have to offer.
Remember, there is no perfect PV, which is why some people use more then one model throughout the day.