PCSX2 version:
v1.6.0

PCSX2 options:
Running on safest preset and still get weird glitch fest 3D background

Plugins used:
D3D 11 Default setting with no hardware hack enabled

Description of the issue:
KOF 98 UM and 2002 UM both game face issue with 3D background no matter what setting you use.

Here's some comparison of 2002 UM Tougeki Version (J) to actual PS2 machine

KOF 98 UM (USA) also suffer from same problems but only with 3D background (you've to turn on 3D background from option and by default game runs on 3D instead of 2D background)

How to reproduce the issue:
KOF 2002 UM Tougeki Version (J
Boot up game > go practice > pick greece map and start.
You can compare this with screenshot.

KOF 98 UM (USA)
Just boot up the game with any setting. (literally anything) then go option > graphic setting > set background to 3D (by default it should be 3D)
go practice mode and pick china 1-3 to see obvious shadow glitching and hills missing parts

Last known version to work:
uh I tried googling and it seems like this problem exist since bloody 2015 lol but never fixed.

PC specifications:
Laptop
i5 7200U
GTX 940mx 4gb
8GB ram