Most bow quivers will have some effect on how a bow will feel in hand and how it shoots. Some use the quiver as a stabilizer and don't take it off. At Eagle's Flight Archery we started the ultra-lite trend several years ago with our 3 arrow Mini bow quiver. Now we make a large variety of quivers with both cowhide and exotic leathers like rattlesnake, beavertail,etc. Recently we started making them with hoods deep enough to hold the larger heads such as the Grizzly 190s.
Personally I shoot a lightweight Beeler longbow with one of our Cherokee Jumbo I Totem bowquivers. It holds 4 arrows comfortably and I cannot tell it's on the bow. I have also had hundreds of others say the same thing, "they can't tell it's on the bow". I haven't had to change to different arrows, and I haven't had to adjust my shot. You can tell it works because other mfs are now selling lighter weight quivers.