Question Constant Stuttering in games

Dec 26, 2018
6
0
10
GTX 1050 TI
I7 2600
8GB RAM
1HD

So... I understand I don't have the best system and will probs need to be upgraded but that's a question for a different day.
When it comes down to it I play games such as DayZ, Arma 3, Rust and these are some what high end needing pc's. I would get decent FPS but I'd get stuttering.
In DayZ I'd go from 100 fps to 10 or freeze shortly and it would completely ruin everything for me.

I'm not looking to upgrade CPU or GPU just looking for recommendation on what could be the problem and if a RAM or SSD upgrade is needed or both. Thanks