I use this stuff https://www.amazon.com/dp/B07T3BXP3X/?coliid=I1SM45FJ7E21N9&colid=XYN4Z4HQXODB&psc=1&ref_=lv_ov_lig_dp_it to replace Happy Camper in warm weather because Happy Camper is insufficient. Although not sold as a sensor cleaner it may work.
I do note, however, that the same company sells a sensor cleaner https://www.amazon.com/dp/B07T3BXP3X/?coliid=I1SM45FJ7E21N9&colid=XYN4Z4HQXODB&psc=1&ref_=lv_ov_lig_dp_it I don't know anything about it but I'd be inclined to give it a try.
Maybe filling the tank 1/3 or so plus a big glug of Calgon and Dawn on travel day would help. I suspect you're getting a calcium "soap scum" buildup.