It’s almost the same thing that happened to FSX when nobody’s hardware could run the huge bitmaps. So Microsoft went and released the performance patch (SP 2 - I believe?). It made the sim flyable but the trade-off was having to forfeit good visuals. Then as PC’S got more powerful in the CPU department (especially with fsx, but not as much as GPU as THIS MSFS2020 needs), you wound up getting 3rd party mesh and scenery (Ultimate Terrain and others) that needed that power - so it went full circle and the cost landed in the end user’s wallets!
I suppose that with this patch saying “performance enhancements”, it means a hit in the eye candy department.
I just finished a brand new pc build - i9 10900k, 32Gb DDR4 3200 RAM on an Asus ROG Z490-H mobo and Nvidia RTX 2080ti with a 32" curved UHD GeForce monitor. I just couldn’t justify spending ANOTHER 3 grand+ for the RTX 30XX (I already just spent ~3 grand for the aforementioned and it left me without some other luxuries!). So, with a fresh Win 10pro install and MSFS2020 downloading the last 10Gb, l have yet to see how it looks with this 188.8.131.52 patch with sliders to the right.
For reference, I initially ran MSFS2020 (before this patch) on my “older” rig (i7 6700k OC’d @4.8Ghz on a Z170k mobo, 16Gb DDR4 2133 RAM, GTX 970 on a cheap Asus 24" led monitor). On that rig, I could run it on medium settings. Any more, I got random CTD.
So my verdict with regard to this patch isn’t in yet, but soon will be. I’ll chime in in a couple of days. Blue skies folks