Outlook fantastically slow

I use Gmail, but pick it up using Outlook.  I use the latest version because I have Office 365.  Outlook takes forever to pick up my inbox - I literally don't know how long because it hasn't finished yet. Is this normal?  Surely no one writes software this bad?
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JohnBusiness Consultant (Owner)Commented:
I have Outlook 2013 picking up mail from my Email ISP and it is quite fast.

How many items in your Inbox?  I keep my Inbox very clean.

How big is your PST file?  OST if you are using IMAP.
AchllesAuthor Commented:
I have 10,000 items in my inbox.  But I assumed that Outlook would only sync changes - I get 40 emails a day or so - but it seems to do the entire mailbox before it picks up the new mail.  The trigger for it was the verification email from EE which I acutally went to the online version of Gmail to click on - Outlook was too busy syncing to pick it up!

Not sure how big the OST file is - I am using IMAP.  As I am using Windows 8 I am too impatient to wait for the search for *.ost to complete.  I am going to work in the garden for a couple of hours.  If it finds it after that, I will post the file size.
AchllesAuthor Commented:
Ah, it must have heard me!  Its 6.8 Gb.  Is that big?
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JohnBusiness Consultant (Owner)Commented:
Your email files is very large. This is probably what is slowing down Outlook.

but it seems to (sync) the entire mailbox before it picks up the new mail.  <-- I am not sure about the order, but Outlook will want to sync the entire mailbox. It has always been like that.

Consider the following:

1. Clean out your Inbox. I only keep a day or two of to-do's for my consulting business. I move most stuff into folders.

2. Archive your mail into local PST files so that the main email file shrinks. Mine is around 1 GB and it functions well. I have email going back to 1996 in archive files.

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AchllesAuthor Commented:
When you say 'folders' do you mean Gmail labels?  

I have PST files going back to around then too - its sort of the bane of my computer life.  Emails here there and everywhere! Its reassuring to hear someone say that PST files are worth using as archive - I think I will make a concerted attempt to create a coherent set of pst archive files.

JohnBusiness Consultant (Owner)Commented:
When you say 'folders' do you mean Gmail labels?  <--- I mean Outlook folders. I think your inbox has too many items. With IMAP, you will probably have to build Gmail folders as well. I do not know what they are called in Gmail. All email systems I have used call them folders.
AchllesAuthor Commented:
Outlook creates a folder and then IMAP syncs it over to Gmail, which gives it a 'label',  I think the story with Gmail is that there is one store of mail items, and each 'view' of that store is controlled by the label.  If an item does not have the label 'Inbox' you don't see it in that view.  Any item can have multiple labels so it can be seen in 'Inbox' view but also in 'My label' view etc.  

Do you just store the PST files and open them in Outlook when you need them, or, when you go to a new computer, do you import all the PST files so that they appear down that left hand side?  

Thanks for your help.
JohnBusiness Consultant (Owner)Commented:
My Archive.PST files are in the same Windows folder as Outlook.PST. When I open Outlook the Archives are right there. I can easily get to old emails.
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