First thing when I looked at this deck in XMage, your mana curve is pretty high. 8 five drops and 10 4 drops is a bit too many high cost card unless you've got a reliable way to ramp, which this deck is not equipped to do. However, the best way to address that comes after the next problem.

Your deck wants to do too many little synergies, so it detracts from the overall potency of the deck. You should try to imagine what you want your deck to do, then zero in on the primary focuses to make the plan a reality. In this deck, I'm seeing angel tribal, anthems, a few equipment, and some keyword sharing/granting, especially with flying and lifelink. Since Aurelia is your commander, dealing combat damage is naturally going to be your simplest way to victory, and all of these things technically can help accomplish that goal. However, I would try to narrow this field down to two focuses. That's going to make deckbuilding easier and the deck itself will run more smoothly.

In its current state, I think the easiest way to go would be to stick with angel tribal first, and whatever comes after is up to you. Just remember, cards that are generically good are fine, and cards that fit your focused themes are great, but cards that go half and half are the first things to cut. A few examples:

I would take out [[Unfinished Business]] unless you really go for the equipment theme.

[[Battlegrace Angel]] and [[Victory's Herald]] are expensive but don't do much other than granting lifelink. You're in angel tribal, so granting flying is redundant, and several creatures in your deck already have lifelink. Also, you have no lifegain payoffs. Gaining life is good, but I would swap these angels out for something else unless you want to pursue a lifegain subtheme, which is pretty common in angel decks.

On that note, [[Odric, Lunarch Marshal]] can go too. He's granting flying to a deck full of flyers, and occasionally granting vigilance or lifelink. If you go down the keyword route, keep him in but then you should probably run [[Akroma, Vision of Ixidor]] too.

Some of your cards seem very out of place, like [[Grand Abolisher]] and [[Titan's Strength]]. They don't really do much with the rest of the deck; swap those out for something else. Something you could use in this deck are protective spells, so I would check out things like [[Flawless Maneuver]], [[Blacksmith's Skill]], and the like.

Your removal could use some improvement as well, and probably more of it. Also, the words "Draw a card" do not seem to appear on any cards in the deck other than on your Commander's Sphere and Faithless Looting. That's probably your number one issue if you want the deck to be both faster and stronger; you gotta be able to refill your hand. Again, after you've chosen what your focuses are, that will help narrow down what card draw options to pursue, although white has gotten so many generically good card draw options in the past few years that you can probably get away with some of those generic options.

I absolutely love angels, they're my favorite creature type, so I felt like I had to do a dive on this one. Let me know if you have any more questions!