The only disadvantage of you new batteries is they will require periodic checking of the water levels, whereas the AGM are maintenance free. Always use distilled water and fill to the appropriate level at least several times a year depending upon your use.
Your new batteries should perform equal or slightly better because they have a bit of additional capacity (220 vs 190ah). And yes, you need to check your charger settings so see if they recommend a different charge profile. You may, or may not, have a separate setting between the two depending upon how flexible your charger is.
Your next move is to get a voltage meter you can plug into a 12v outlet in the coach to monitor your batteries. Plenty of cheap ones on Amazon & Ebay https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
or check your monitor panel for voltage.
Next, seek out sources of parasitic drain. Do you turn off your inverter when not used and the battery disconnect when in storage?