So...did Superman comics at the time stop using any of Superman's rogue's gallery except Lex and became focused on Superman out of costume? Was action Comics renamed "Action Comics featuring Lois Lane"? Was Superman's main comic renamed Lois Lane's Boyfriend Clark Kent? I'm 99% sure none of those things happened. I'm also came out years after the Donner movies, so that can't be the influence (plus the Donner movies actually had a lot of superman, so it doesn't work anyway). So, I'm not quite sure what property influenced Lois & Clark, but unless there is a little known period where Lois Lane took over Superman's comics, I'm going to have to disagree with the property doing more than just giving the TV show some names, a location, and cameo appearances by Superman.
Disagree all you want but you'd still be wrong. The superficial things you list did not occur (title changes and the rest) but there was a period, roughly corresponding with the show, where the focus of a lot of the stories was far more on the Clark/Lois relationship than before or more recently. In this period, like in the show, Clark was the character and Superman the secret identity, rather than the other way around. And Lois did figure a LOT more prominently as a character--as co-equal as she could ever get--in the comics. As to the lack of "Superman action" in the show, at the time, budgets for TV SFX were insufficient to give much space to live-action "superhero action". If the show were being produced today, there would likely be more such action, as it is easier and cheaper to do.
You don't have to like the show, but to argue it has little connection with Superman overall is unconvincing, as the evidence does not support such a conclusion.
Plus, Teri Hatcher as Lois.

