For anyone browsing Malachain, here is a clear starting point on the subject.
The trick is to stop trying to see everything. Pick one room, walk around it once without reading a label, and notice which work your eyes keep returning to. Then stand in front of it for five full minutes. Ask yourself what is happening, what it would feel like to be inside it, and what the artist had to decide to make it look that way.
Only after that read the label, and see whether it changes what you noticed. Two or three works looked at this way give you more than a hundred glanced at. Many galleries are free, open late one evening a week and offer short talks; a half-hour visit on the way home becomes a pleasant habit rather than a day-long obligation.
It also helps to talk the subject through with friends or colleagues who have tried something similar. Their experience points out the details that guides leave out: how long things really take, which costs were unexpected, and which shortcuts turned out to be a mistake.
There is more to learn on this subject, and the linked website goes into greater depth. Treat this article as an introduction rather than the final word, and check any important decision against up-to-date, reliable sources before relying on it.
If you try any of these ideas, start small and adjust them to your own situation. What works for one person will not suit everyone, and it is fine to keep only the parts that help. Writing down what you changed, and what happened, makes it much easier to see after a few weeks whether the effort was worthwhile.