Does anyone know how much difference dropping 2 teeth off the chain rings would make and roughly how many cogs I'd drop down on the cassette if I went from a 48/32 to a 46/30 and also how easy would it be to do.

I've only recently gone to a gravel bike from MTB so am getting used to higher gearing but for the riding we're doing there are fairly regular short bursts when I'm on the 48t on the front and one of the 2 lowest gears / biggest cogs on the cassette compared to being 3/4 down on my MTB and if I could drop it down a couple of cog's would be nicer and help avoid cross chaining.

It's a FSA Gossamer Pro 48/32 on the front with a 105 - R7000 ... 11 - 34t on the rear.