Finish downloaded yesterday. Should i start with standard one or legacy?

What does this legacy gameplay different from standard?

i cant seems to find the correct answer lol

after story act 10 finish, there still alot of end game stuff to play with, so u will continue to level up with mapping.

Hit TAB, you'll see the area level at top right corner.
The rule of thumb is always to stay around the same level or lower. If you over-level, then you grind too much in story area and should start rushing forward.
I often time just shout "rush rush rush rush!!!    skip skip skip!!!" in my head so I don't waste too much time in story.
Generally there is no reason to stay at low level area, you want to hit mapping as soon as possible so the iLVL of items you got will be higher - thus able to roll higher tier mods.
Also there will be slight EXP penalty if you over-level.

Always use the crafting system to your advantage, can fix up the resistant issue easily with those.
Generally going into mapping without full resist, at least 3k-ish life then you'll likely to have hard time.
Use the resist aura if really can't fix the resist by gear as temporary measure.

Yes there are definitely times that the build isn't working well AT ALL...    and forced to grind at the Blood Aqueduct instead of going into mapping...

join the discord group while ago ad..

Later borrow me a dozen of exalt to start ah~

You're playing on 4K? Visual looks so crisp. 

where you bought your luck? Tesco? 7/11? Which branch?