Question why is my fps on fn an other games so low and i got so many stutters while i have a gtx 1650 i3 9100f and 8gb of ram can anyone help me fix that?

The DRAM you have is that two 4GB modules or is it a single 8GB module?

Is your operating system installed on a SSD?

Are your games installed on a SSD?

Have you checked to see if the CPU/GPU happen to be running hot?

There are a lot of potential problem points when it comes to performance so without full information regarding your system it's very hard to make any specific recommendations.