need help with road bike conversion from gravel bike.

I purchased a Cannondale Topstone Carbon Ultra RX 2 before pandemic and spent lot of time on local trails but not very pleasant ride transitioning from stumpjumper full suspension bike. I recently met up with a group of cyclers in church on a 30 mile ride with my gravel bike but i was having difficult time keeping pace with them. I'm new to road cycling and need some guidance to upgrading for better speed. the current crank is 46/30 with 11-34 cassette. I swapped out the tires to Pirelli Zero Velo 4s.

or should I just build a new setup for road?

Thanks in advance~