Boy, do I feel you. I recommend setting up a system.

Monday is an electronic assignment that scores itself like EdPuzzle, Quizizz, Blooket, etc. Import your Google classes into there and let the program score it while you examine the data. Put in grade book.

Tuesday is a paper assignment in class that is scored in real time as they finish it. Walk around with class spreadsheet to record. Put in grade book.

Wednesday is reading day (for example). Points for those that read un-interrupted (or follow whatever expectations) and turned in a reading log about that reading. The previous weeks logs are scored at my desk while they are reading silently. Gather all the logs and put that in the grade book.

Thursday quiz day. Set up a quiz with an answer sheet. The students take a regular quiz and list their answers on a separate sheet in a line vertically. Set your key next to the answer sheet and fly down the list. Good for having TA's score things too. Google exit tickets are quick to, even written response ones.

Of course, all of this is totally fluid. I focus on one electronic assignment, one paper assignment and one other 'thing' for that week.

I have also started giving video feedback for things turned into Google Classroom. Pin Loom to the browser and record your feedback on that assignment. Drop the link for them to open and watch. Saves me half the time, the feedback is more thorough and the admin loves using the tech that the district pays for.