I have same problem my specs are kinda same:
500 GB HDD
Windows 10 x64 Pro
8 GB DDR4
Nvidia GeForce 1050 Ti
processor i5 - 8400
Honestly the game was quite unplayable straight after the release but now it's far way better still hard to say that yeah I can start spending time enjoying the game but I can try the game.
There are still some randoms stutters and FPS drops especially in the beginning of each battle.
Hope you would speed up the process to start enjoying the game :3
Also I have a question: If I do upgrade to 16 GB DDR4 of RAMS, would it help like fixing the problem if it's problem with memory? or it wouldn't be worth of it