Landing Page Speed for SaaS - Seeing Real Conversion Differences?

I work on paid acquisition for a B2B SaaS tool and last month we cut our main LP load time from 4.5s to under 2s. conversions jumped like 15-20% which was way more than I expected for a speed fix. the dev team pushed back on prioritizing it but the numbers shut that down fast. anyone else in SaaS seeing similar impact from page speed or was this just our situation?

Yes, landing page speed directly affects SaaS conversions because faster pages bounce and keep paid traffic engaged.

Honestly 4.5s is way too slow for b2b so that jump makes sense, speed is basically a conversion killer if people have to wait more than 2 seconds.