Thank you for your initiative in helping me.
Actually i bought my Mac in 2014 i think. (Not sure if i had to get a new one just coz for this reason :P ) Below are my System Config.
MAC :
macOS Catalina V 10.5.6
Version
MacBook Pro (Retina, 13-inch, Mid 2014)
Processor 2.6 GHz Dual-Core Intel Core i5
Memory 8 GB 1600 MHz DDR3
Startup Disk Macintosh HD
Graphics Intel Iris 1536 MB
Built-in Display
13.3-inch (2560*1600)
Intel Iris 1536 MB graphics
251 Flash Storage.
FCP : 10.4.9
I dont use very heavy effects..
https://www.youtube.com/watch?v=RP_boBER3Ss&list=UUqNB2NjtooyA4yZrT2wXehQ&index=1
this is a sample video which i used basic effects compared to my other videos and it is 8 mins video which took me more than 2 hours.. This 2+ hour is my default when i export even a simple video with very minimal transitions and effects. this is the video with my least effects. https://www.youtube.com/watch?v=R9B9EtAZrls. i used fcpx effects , pixelstudios plugins. Only these two brand plugins i am using.
I usually use below two export settings.
If file size comes within 1.5 GB i use ....
Format : Video + Audio
Video : H.264
Resolution : 3840*2160
If file size goes more than 2 GB i use...
Apple Devices 4K setting which defaults to
Format : Apple Devices
Video Codec : H.264 Better Quality
Resolution : 3840*2160
May be i will try exporting just the 10 mins video without adding any effects and update how long it takes.
Hope this make you understand my problem. Let me know if you need more info.