In my view, a turntable is a straightforward machine, be it a Lenco or any other, that has the simple task of spinning at the selected speed without imparting any detrimental effects to the resulting sound. If that turntable doesn't play well with others, then one of two things is happening. Either it reveals the shortcomings of the associated tonearm and cartridge, or they reveal the shortcomings of it. It is that simple, really.
That said, I believe that any tonearm and cartridge should perform with any turntable. If the result is not as good as should be, something is wrong with one, two, or all of them.
Try your tonearm, and if it sounds better than on the Nottingham, at least you can ascertain the merits of the Lenco. If not, more work is in order.