Can a better VPS boost more CPI conversions?

I heard somewhere that a low GB VPS causes slower loading to the visitors, if not mistaken.

I use to run 30 accounts on the free Amazon VPS (1GB), however my conversions were lower than expected, because my niche is strong and unsaturated. I will soon upgrade with new VPS and 300 accounts, so I was wondering if the GB of a VPS has any affect on conversions?

Your IG accounts and your hosting provider you are using for your landing pages are completely separate unless you are hosting the landing pages on the VPS or server.

Getting a faster VPS wont affect your landing pages if you are paying for hosting.