Crash certain games

Please give advice about the Laptop
Laptop ACER Aspire e-15
Intel Core i7-5500U 2.4 GHz with Turbo Boost up to 3.0 GHz
NVIDIA GeForce 940m with 2 gb
8 gb DDR3 L Memory
1000 HDD
You know you say the laptop is not for gaming ,and if you crash it will not change anything ,but even the weakest crash games
for example:Guild 2,CS 1.6,Sims 3
and stronger,CS Global Offensive,Sims 4,total war ROme2(despite the fact that the earliest version of the game is fine ,but the newer version with different DLC hangs)also Just Cause 3,Grid 2,Far Cry 5,Battlefield 4 etc
under the freezemeans not low FPS ,namely a sharp podergivani
and here is an example of games that are fine:Gta 5,FIFA 18,Fallout 4 , Far cry 4,Resident Evil 7,Star Wars Battlefront, etc. (all these games are on medium,high settings at 30 and 50 FPS)
That I do not understand the difference of these games,why some are fine and others are not ,
reducing graphics quality or slightly helps FPS grows and the brakes remain
No viruses ,the game rocked different versions ,pirates,litsuhi there is no difference
Windu demolished,put 10,8,7 ,there is no difference ,still slow,
So I think the BIOS update ,I think will help?