I think you mean "the guys that I am attracted to aren't looking for anything serious". I am using the app you mentioned for years and I am looking for (very)serious relationship but I barely had any real match here.
If you live on the French part of CH, you can also try meetic or adopteunmec.com, both are French website but they cover the Romandy and I think both are available in English
I just want to give an insight to 'why women look for the 185+cm guys' ...
Lot of women are 170+ so let's say if she's around 175cm and the guy is the same hight , often it feels a bit awkward. For the simple reason how you see those guys say "i'm 175, 70kg" and most women are 55kg to 65kg ).
so, it all depends on the corpulence but for some girls out there it's like "oh he's my hight and weight ,he's so light I can eat him for breakfast"