Here are my two cents. I'm quite new to the mod, kind of testing it and must say – enjoying it incredibly. I also notice odd things... or at least odd until someone explains that it’s working as designed
In my last game I wanted to play with CSD and go for a DV. Result: ended up with VC halfway through @T340. And only because I deliberately postponed it – switched off all specialists except science ones. I didn’t want to get any GPs. Otherwise I would had won @T300. I got Influential with 6/7 civs @T240 only from Historic Events and Trade Routes tourism. Great Works were insignificant. The 7th civ was Austria – the only one with culture pool comparable to mine.
So, yes – as a first resort – PLEASE turn down tourism from HE & TR, at least half or even more. As for now - getting e.g. 60-70 "normal" TPT and at the same time 2000+ from HE & TR - it's totally unbalanced.