AVG Ultimate Internet package slows down my laptop

My Acer laptop has 1TB (1000 GB) hard drive & 8 GB ram, 
since installing AVG Ultimate security package my laptop runs extremely slow,
internet connection is wired Ethernet = 75 mb download speed.
Speedtest by OOKLA shows good internet connection for download & upload.
However it takes over 5 minutes for my laptop to startup and 
Microsoft updates take up to 30 minutes to download & install,
however email & website browsing  seem to work ok…
AVG VPN package sometimes does not turn on automatically,
I need to turn it on manually.
AVG Tuneup takes over 15 minutes to complete its test & hard drive scan.