Hello,
I own a GIGABYTE B450M S2H V2 motherboard paired with an RTX 4060 Ti and an R5 5600 processor. Firstly, I want to note that prior to switching to the RTX 4060 Ti, I used an RX 6600 and encountered the same issue. Before that, my setup included a GT 1030 graphics card with the same system configuration. While using the GT 1030, I experienced no issues with SA:MP, consistently achieving 300-400 FPS, barring crowded player environments.
However, upon switching to the RX 6600, my FPS drastically dropped to 100-150 FPS compared to the GT 1030, despite the recent upgrade in graphics cards. I attributed this to potential compatibility issues between AMD and the older game. Recently, I upgraded to an RTX 4060 Ti, hoping to resolve this issue and regain my previous FPS values, enabling the use of enhancements like ENB with high FPS.
Unfortunately, even after installing the RTX 4060 Ti, there was no improvement in FPS, which is quite frustrating. I've attempted various troubleshooting steps including resetting BIOS settings, disabling the XMP profile, turning off Resize BAR, FreeSync/G-SYNC, hardware-accelerated GPU scheduling, processor PBO setting, and power performance settings. Additionally, I've tried installing different operating systems such as Windows 11 and Windows 10, yet none of these actions have rectified the FPS problem.
I'm deeply disappointed that despite having powerful hardware, I'm unable to achieve the same FPS as before with an identical system setup. It's worth mentioning that the only significant change since using the GT 1030 is the graphics card itself. All mods, game files, and other pc parts remain the same.
I suspect the issue may be related to the drivers for the RTX 4060 Ti and RX 6600. As a next step, I plan to reinstall the GT 1030, and test again. However, in the meantime, if anyone could offer alternative solutions or assistance, I would greatly appreciate it.

