You want to use a single flute Aluminium cutter. Try running around 3k to 5k rpm. Feedrate of 0.01 to 0.03mm per rev.
Cut depth of around 0.5 to 1mm. If clamped well, should be able to cut at the full depth of the sheet. I use a cutting oil from Blaser CF35. It also helps to have a vacuum cleaner nozzle mounted to draw away the swarf, and have a light airblow mounted to direct chips to the vacuum port.
The near pure alloys are gummy. I avoid the kero because of it’s flammability. Water with some dishwashing detergent, also works well for these gummy alloys. Drilling a start hole also helps a lot. But I never recommend an end point hole to be drilled. Breaking through the hole can sometimes cause problems.
Cutting over some sheet wood, and then clamping the sheet either side of the cut also helps with cutting thin plate. Another way is to use double sided tape to hold the material to a painted or sealed material like custom wood sheet.