How Can I Speed Up My MacBook When Time Machine is running on Time Capsule

My Macbook starts to run really slow and I consistenly get the color wheel when trying to do other tasks when Time Machine is running in the background.  I am connected to Time Machine on a Time Capsule. Given this runs every hour its really annoying.

Plus to pondini..
If possible you can use ethernet.. that speeds things up greatly.
If you are close to the TC make sure it is connecting via the 5ghz wireless.. Check the actual wireless link speed. And transfer rates.. if rates are too slow.. then look at relocating the wireless or putting in some sort of wireless extender.
I guess the other question is what is slow.. the disk on the computer, internet, just overall feel of the computer.. perhaps give a specific.. what is slow.

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    Now some doubts arised:
    Are these text/xml indexes only useful for getting the rowid of my document?
    I mean, if I select 'x' from the table looking for some value, then the index is used. But when I use extract in the select to get the section I look for, the query gets really low, specially when xml documents are big. I think when I have only row with one document, getting the rowid is not the problem, but the extraction from the document is.
    Is the extraction process faster because of the index?
    For what I see, the index only helps me to find the rowid, but then Oracle has to deal with the very big document inside the row. At that point Its oracle against a big text processing and index has nothing to do.
    How can I speed up the extraction of the section?
    If there any other index or tool for help extraction to be faster?
    I would appreciate to know what can I do. I need help on this.
    Thanks in advance!

    Well,
    - What indexes, if any, already exist?
    - What do the functions rl and nice do?
    - What are the current query plans?
    - How restrictive are the various predicates?
    - What version of Oracle?
    Justin

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