No; a 24 in monitor MOF. Have changed NO settings when this site arrived, and the resolution is poor. So, it is the new software. The old site used the same settings I am using now.
Maximizing phone performance in deference to PC users is only one point. The overall layout and background really bites if one is a PC only user. Aren't there enough PC only users to be considered any more? Quite sure that isn't so. I remember a few years ago, you changed the forum to a newer vBulletin software, and it had issues that made it unusable as I recall. But the lack of settings in the new software has made it impossible to bring some semblance of the previous software back. Is that where this is all going?
Honestly Robb, I'm not seeing any of the issues you're referring to here. I'm not trying to detune the PC performance in favor of mobile at all. Like I said, I'm testing this on Windows, Mac, Android Tablet, iPad, iPhone, Surface...pretty much anything I can get my hands on.
Take a print screen of what the site looks like to you and post it.