Modern list experience - slowing down query changes and load

We recently switched to modern list experience for some lists and using the same report as before when we make any changes via Edit Query in the desktop, it seems to take a lot longer to apply those changes and load the data. I don't have any exact metrics but wanted to know if the modern experience could affect this at all?

I know there a lot of other factors with report design being a major factor, but just trying to rule out the modern experience as the timing of the change matches!

The scheduled refresh still works, but again I don't have metrics on how long this took previously compared to current times.