Should I switch to weaker snus?

So, I got my first snus about a year ago from a friend. He had a Velo Freeze. I got a nicotine flash after about 5 minutes of putting it in and taking it out. I kind of liked the feeling, so I bought a pack of the same snus he had at a gas station. I just kept it in my backpack, and for a long time, I took one maybe once a week and bought a new pack when it was empty. Recently, I started using it more regularly (maybe 3 a day), but I still get a flash very quickly. I thought that was normal and just enjoyed it. Last week, the same friend gave me a pack of Siberia that he bought online, and I was able to leave it in for much longer, and it was just a pleasant flash, not like the Velos I'm used to, where I have to take it out as soon as it starts to flash. So, if I buy weaker Velo snus, will it be more like the Siberias, or is it the same because it's not a tobacco pouch?