Your laptop uses ddr3l ram. Not DDR4 or DDR5.
If you want to update ram, go to a ram vendor web site such as Kingston and access their ram upgrade app.
Enter your laptop and you will get a list of supported ram upgrades.
I would not expect much if anything out of a ram upgrade.
Check cpu-Z ram info.
If adding ram lets you go from single channel mode to dual channel mode, you will gain a slight bit more compute power.
If you are gaming, play while plugged in.
Otherwise windows will implement battery saving power reductions.
Be certain that you are using the discrete 960m chip and not any integrated graphics adapter.
Likely, if gaming is your thing, your only way for better fps is to reduce settings or buy a new laptop.
For general...