Broadband speed massively reduced by AVG VPN

I’ve recently purchased a new PC and have Full Fibre. Speeds may vary to the router, but are generally upwards of 800MB. My PC is hardwired to the router via CAT6 Ethernet cable. I’ve just checked broadband speeds and with AVG VPN switched off it’s currently 980MB and with it switched on it’s less than 40MB!
I’ve been using AVG products for many years, but am getting frustrated with slower speeds and the VPN seemingly getting more agressive.
Can this be resolved?