The configs i use here :
Write Color Buffers = Check this settings to avoid color issues in Costumes/Clothes, its a common issue in Tekken PS3 Console Games so it works for Arcade versions as it is already based on PS3 Hardware.
Stretch to Display Area = Optional to check, because i use this one to avoid Overscan/Underscan issues as i already have a 16:9 monitor. Its a common problem from that era that TVs were sold without Overscan/Underscan configuration and most of PlayStation 3 / Xbox 360 games, are a little zoomed on TV, thats why the Tekken Health Bars in Console version are more centered on screen than on Arcade version that is more close to the edges.
Resolution Scale = It will improve internal resolution (reduce jaggies) for the games. PlayStation 3 games in general will only look good starting from 300%, as i have a weak PC for todays standards (Ryzen 1700 + GTX 1060) i will set to 300% it uses 40~60% of GPU Load and only 1GB of VRAM (yes it uses way less VRAM than Tekken 4 and Tekken 5 on PCSX2 at 6x internal resolution). Most people here have way more powerful PCs than mine, so you can set the slider way higher than 300%.
Prefer Exclusive Fullscreen = At least for me it reduces the stuttering and avoid audio issues (unless the game doesn't run at Fullspeed on your PC) but it is very optional/personal for use.
Show PPU/shader compilation hint : As already mentioned, leave unchecked this one to disable the RPCS3 overlay showing the shader compilation processing and making the game looks less likely are running on on real Console/Arcade.
This is how it runs on my old PC here:
Tekken 6
Tekken 6 Bloodline Rebellion