Hello everyone, once again i seek your help 
i use most of my time playing arma 3, but i can only run the game on mixed settings between low and medium, or else i will experience too much lagg.
my specs: (if you need anything else please just say so
i will find it as fast as possible)
GPU: GeForce GTX 780
CPU: Intel(R) Core(TM) i7-3770 CPU @ 3.40GHz
Memory: 16.00 GM RAM
Resolution: 1920 x 1080, 144Hz
OS: Windows 8.1
I love to play games but i have no clue what the specs means, i just took this from the NVIDIA Experience panel, so when you write an answer keep in mind that every short term you use i will have no clue what it means
Hope you can help me and I thank you in advance

i use most of my time playing arma 3, but i can only run the game on mixed settings between low and medium, or else i will experience too much lagg.
my specs: (if you need anything else please just say so

GPU: GeForce GTX 780
CPU: Intel(R) Core(TM) i7-3770 CPU @ 3.40GHz
Memory: 16.00 GM RAM
Resolution: 1920 x 1080, 144Hz
OS: Windows 8.1
I love to play games but i have no clue what the specs means, i just took this from the NVIDIA Experience panel, so when you write an answer keep in mind that every short term you use i will have no clue what it means

Hope you can help me and I thank you in advance
