This is tough for me to answer honestly. (By the way, I believe you meant to say you are using the X2, not the V2; something entirely different.)
I began vaping with the Smokeless Image line, including the X2 and their clearomizers. Decent for a beginner setup. I'm pretty certain that you can increase your vaping satisfaction by upgrading. Now whether you want to do this by upgrading with a fixed voltage mod or variable voltage like the Provari, depends upon your budget. The Provari is expensive and worth the money, but you "might" get just as much satisfaction with a less expensive option.
I personally believe the Provari is the best option if you can afford it. Variable voltage allows one to adjust the voltage up or down the scale to find the sweet spot for each flavor that you use. I prefer using IBTanked pyrex cartotanks with a high quality cartomizer on my Provari. This has been the best way to get the best flavor for me. I just received my first rebuildable atomizer this weekend, so soon I will be able to see if it can provide me with purer and better flavor.
If you go with a fixed voltage mod with a low resistance atty, you will be limited to adjust to taste.
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As someone pointed out, your tastebuds are still damaged from years of smoking and may take a few months before they return to normal. In the meantime, be sure to exhale some of your vapor through your nose to allow it to help your tongue interpret the flavor in vapor.
You should also try some of the stronger flavors from a good e-juice vendor, such as a cinnamon, one of the 'mints, or a menthol.