Question Alot of stuttering on Forza Horizon 4

[Jalis812]

Specs are listed in the screenshot, the CPU is overclocked to 4.62GHz. As you can see on the benchmark result, I have stuttering issues that doesn't exactly make the game unplayable but it's very annoying.

Yes, I know my CPU is weak but why can't it have a stable 55-60fps? What causes it to have a sudden spike? Please help me.

[Edit]
I turned off shader cache which reduced fps on average but removed those huge CPU spikes which has made the game much more playable and enjoyable.

Benchmark:

https://imgur.com/a/IsKifbh

View: https://imgur.com/a/IsKifbh

 

[Lutfij]

Your platform is the reason you're experiencing the issues. Honestly, what else were you expecting from an FX-8320?

On second thoughts, please list your specs like so:
CPU:
Motherboard:
Ram:
SSD/HDD:
GPU:
PSU:
Chassis:
OS:

 

[Jalis812]

Your platform is the reason you're experiencing the issues. Honestly, what else were you expecting from an FX-8320?

On second thoughts, please list your specs like so:
CPU:
Motherboard:
Ram:
SSD/HDD:
GPU:
PSU:
Chassis:
OS:

AMD FX-8320 Black Edition OC to 4.6GHz
Gigabyte 990XA-UD3
12GB DDR3 ram
240GB Kingston SSD
Game is installed on Firecuda 2TB
Asus Dual GeForce GTX 1660Ti
Windows 10 build 17763.805

Yes, I know CPU is weak but shouldn't it at least have stable FPS?