Computer runs in slow motion

Computer Type: PC/Desktop
System Manufacturer/Model Number: Custom build him
OS: Windows 10 Pro
CPU: i5-6500 @3.20GHz
Motherboard: Gigabyte B150-HD3P-CF
Memory: 16GB DDR4 2133 Crucial Ballistix Sport LT
Graphics Card: MSI GeForce GTX 1060 GAMING X 6G
Sound Card: Built-in
Monitor(s) Displays: 24" Liyama ProLite XB2483HSU-B2 & 24" Dell Ultrasharp U2414H
Screen Resolution: 1920 x 1080 * 2
Keyboard: Func KB-460 (MX Red)
Mouse: Corsair Gaming M65 RGB
PSU: Corsair RM550x
Case: Fractal Design Define S
Cooling: Cooler Master TX3 i
Hard Drives: Crucial MX200 500GB & Toshiba DT01ACA300 3TB * 2
Browser: Google Chrome
Antivirus: Bitdefender Total Security 2019 + MBAM Premium
Other Info: Creative Sound Blaster Tactic3D Rage V2 headset

Computer Type: Laptop
System Manufacturer/Model Number: Dell Inspiron 15R 5521
OS: Windows 10 Home
CPU: i7-3537U @ 2.00GHz
Motherboard: Dell Inc. 0C46Y8 (U3E1)
Memory: 8GB 1600MHZ DDR3
Graphics Card: Intel(R) HD Graphics 4000
Sound Card: Built-in
Monitor(s) Displays: Generic PnP Monitor
Screen Resolution: 1366x768
Mouse: Sharkoon FireGlider
Hard Drives: MX200 250GB SATA III 6.0Gbps & ST1000LM024 HN-M101MBB 1TB SATA II 3.0Gbps
Browser: Google Chrome
Antivirus: Malwarebytes