Drive the bike around and get it good and warm. Come back to the shop and let it idle for 30 seconds. Stop the motor and pull the drain plug at the bottom of the crankcase (not the tank drain plug). Measure the quantity of oil that comes out. Reason I suspect issues there is nothing you did would have changed the tune radically, but if the oil pump was not scavenging correctly and or the new higher oil pressure was forcing more oil into the crankcase then it would present with the symptoms you describe, plus it would be down on power as it is effectively paddling through lots oil to run, this heats and aerates the oil too.
This is a dry sump motor and when they are working properly there is very little sump oil when tested as I described