Try to find a rhythm, like how you mentioned multitasking. I usually try to answer the new call with “hey how r u doing today” cuz that can give you a few seconds to hand out the order at your window, then finish taking the order while setting up your next orders or taking payment from the person at the window. The more you do it the better you’ll get, I used to be so overwhelmed on dto/dtr and now it’s like second nature. And don’t stress too much, even seasoned partners occasionally need someone to jump in and help dto if things momentarily get crazy. Good luck and I’m sure you’re doing great! :)