how to fix and Update my Pc configuration for Photo and Video editing

Current using software: Adobe Photoshop cc | Adobe Lightroom cc |Adobe Illustrator cc | Adobe After effect cc | Adobe Premiere Pro cc | Adobe Media Encoder cc | Corel draw | Protools le 8 | DaVinci Resolve 14(only software) | Cinema 4d

Windows 7 ultimate 64bit service pack 1

motherboard: ASUS H110m-k

Processor: Intel core i5-6400 6Gen

Ram: 8+8=16Gb

Graphics card: Geforce Gt610

How to fix very slow rendering speed