Porting has very minimal effect on decreasing muzzle rise. Might make a slight difference if your second shot was extremely fast after the first. Ported barrels are slightly louder but nothing compared to the noise a Cutts Compensator makes. More than one bird dog in our family went deaf in part due to gunning over them with a A5 with a Cutts. My grandfather shot hundreds of quail a year and by age six or seven his dog no longer was bothered by thunder.
I also suspect they suffered from ear mites which I never remember being diagnosed or treated. A lot of minor cuts were treated with a grease type salve which I suspect just created a barrier to keep stuff out of the cut. Life was hard on a dog in those days. A dogs life was a lament about hard times with little love.
