Need your input with 3 monitors

Below are my PC Specs.
I run 3 SONY TV’s as monitors. I can use Frame Gen on the center screen how ever since the last update SU15, my two left and right screens have terrible frame rates.
Prior to the update it ran smoothly. I’m hoping someone has a similar setup and can help me get these two side TV’s back to an acceptable level. This bad FPS is not just in cities.
SPECS:
Win 10 - 64
Motherboard: ASUS Z790 PRIME
CPU: I9-13900K
RAM: Corsair - 48 GB 7000
GRAPHICS: Asus TUF GAMING OC Edition GeForce RTX 4090 24GB
HD: Samsung nVme 2TB
Sound: Onboard Realtec + Soundblaster Audigy 5
MONITOR: 3X 43" Sony 4K TV’s
RealSimGear G1000 Suite
HoneyComb ALPHA & BRAVO Yoke & Throttle
Logitech Rudder Pedals
Next Level Racing Cockpit seat with BUTTKICKER
ALESIS Dual M1 ACTIVE Mk2 Powered Sound Monitors