I don't play that many games and usually they're 2D so the graphicscard is sufficient. I think the only other game I had problems with was Civilisations but it just slowed it down a little.
My Computer
Computer type
PC/Desktop
Computer Manufacturer/Model Number
Overclockers UK
OS
Windows 7 Pro x64
CPU
intel i3 530 2.93GHz
Motherboard
Gigabyte GA-H55M-UD2H
Memory
CMX4GX3M2A1600C9 (2x2GB)
Graphics Card(s)
AMD Radeon HD 5770 CuCore 1024MB GDDR5
Monitor(s) Displays
LG M2262D
Screen Resolution
1920 x 1080
Hard Drives
Seagate Barracuda 7200.12 500GB SATA-II 16MB Cache ST500DM002-1BD 142 ATA
Hitachi Deskstar HDP725050GLAT80 ATA
PSU
Corsair GS 600W Power supply (CMPSU-600GUK)
Case
Antec 300 Three Hundred Ultimate Gaming Case
Cooling
Akasa AK-CCX-4002HP Venom CPU Cooler
Antivirus
KIS 16
Browser
chrome
Other Info
currently not OC. RAM is running at 1333MHz
CPU used to be OC to 4.2 GHz, RAM running at 1600MHz
lost OC when I updated the BIOS to F11 (increased memory compatibility)
If it was Civilization V, I can see why it slowed down on your system. You have only a little bit more than the recommended specs. To run properly, the game requires much more than the recommended specified hardware.
If I'm understanding things correctly; you are trying to run today's games on yesterdays hardware.
What other programs are you having problems with?
Over clocking is not a problem. You get what your system will allow you to get and that is all. All systems are different.
My Computer
Computer type
PC/Desktop
Computer Manufacturer/Model Number
Home made Desktop
OS
Windows 10 Pro. 64/ version 1709 Windows 7 Pro/64
CPU
Intel i7-6800K @ 4.3
Motherboard
ASUS X-99 Deluxe II
Memory
Corsair Platinum 16 gig @2400
Graphics Card(s)
EVGA GTX 1070 OC
Monitor(s) Displays
Asus 27" LED LCD/VE278Q
Screen Resolution
1920-1080 or 1280-720 HDMI
Hard Drives
INTEL SSD 730-240 Gb Sata 3.0/
PSU
EVGA Platium 1200W
Case
Phanteks Luxe Tempered Glass 8 fans/ one radiator
Cooling
XSPC/ Water Cooled CPU
Keyboard
Das 4 Professional
Mouse
Logitech M705/MX Anywhere 2-S
Internet Speed
100 mbits
Antivirus
Microsoft Security Essentials/ Malwarebytes Premium 3.0/ SAS
Browser
I.E. 11 default/Firefox/ ISP Time Warner Cable/Spectrum
Other Info
LG BluRay Burner/
Sound system-KLipsch-THX/
Icy Dock ssd Hot Swap bays.