Very slow performance with queries sent to MS Access

Hi, folks,
I'm developing a site with JSP and MS Access and I'm having a lot of DB headaches. Since the site is still under development (not released yet), I'm using very small tables (like 20 rows, 20 columns).
The first problem was that every time I executed ResultSet.getXXX() it took 50-100 ms. This made a page with little data (200 values read) take more than 30 seconds to display (!!!). I solved this issue changing the old jdbc:odbc for a brand new (trial) Netdirect JDataConnect driver (I include this info mainly because I think that may be helpful for some people out there).
Now I have significantly reduced time consumption, but still the Statement.executeQuery() sentence has a terrible performance. I've measured 2 to 3 seconds for each query to return. I think that this is not logical for such small tables (What could happen with the 50,000 rows tables that we are planning to use in the future!).
As always, thanks in advance for any help.

It's been some days since my last post, but I have got valuable info in this time.
First, answering your question, Sun's jdbc:odbc bridge only supports one isolation level: TRANSACTION_READ_COMMITED (at least for MS Access), so it's not possible to try to change it.
However, I've discovered that a good solution to improve performance is to use another driver. Right now I'm using one from Atinav that dramatically improves performance (from 30 seconds to 300 ms).
The problem with this driver is that it only supports JDBC 1.0, so I can't even use a scrollable ResultSet.
Right now I think that I would be happy if I found I driver with a performance similar to Atinav's, but also supporting at least JDBC 2.0.
As always, thanks in advance for any help.

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    It baffles me why I would need to do a clean driver uninstall in a new system environment that has only ever had this video card, and is only a few months old, but that action seems to be what's improved the situation. Note that because I deleted the PS preferences, the good performance now occurs with the default Use Graphics Processor enabled, and Drawing Mode set to Advanced (with every feature in the Advanced dialog checked except 30bit display).
    Having no reference point, I can't tell for sure if performance is as good as it theoretically ought to be for my system specs, but using the standard 13px brush is only slightly laggy behind the cursor, even if I become reckless and squiggle on the canvas violently. It wasn't just sluggish response before: Photoshop seemed to be in pain trying to draw the line segments as it laboured to catch up to the cursor. That is pretty much gone now.
    Much more tellingly, zooming and panning the canvas is like it ought to be, responsive and clean, more or less like it was for me in CS4 with my old Nvidia 9600GT. The poor performance with zooming and panning was the most worrying aspect of the issue. It's a great relief to see these working more properly now.
    I have to confess I'm a little embarrassed to have drug you through all this hassle only to discover that something as rudimentary as properly cleaning out the drivers would be the apparent solution. I never would have imagined that doing that, with such a new and stable system, would make any difference, since I don't have a legacy of older drivers dotting my hard drive. In any event, I'm really grateful that you guys took the time to try to help me.
    In the interest of completeness, here's the relevant portion of my system info after doing the reinstall steps I mentioned above:
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    Driver Date:
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    Video Mode: 1920 x 1080 x 4294967296 colors
    Video Card Caption: AMD Radeon HD 7800 Series
    Video Card Memory: 2048 MB
    Video Card Number: 1
    Video Card: Microsoft Basic Render Driver
    Driver Version: 12.100.17.0
    Driver Date: 20130226000000.000000-000
    Video Card Driver:
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    Video Card Caption: Microsoft Basic Render Driver
    Video Card Memory: 0 MB
    As you can see, the Microsoft Basic Render Driver still appears as a Video Card in the list. This presumably has something to do with Windows 8, and I really don't know if its presence here is still a sign that my card is not being used to its optimal capability. I have a hunch that the slight lag that I am still experiencing with the brush when Use Graphics Processor is on -- totally absent with the acceleration turned off -- implies that Photoshop is still unable to take maximum advantage of my card. I would assume that the brush tool should be more responsive with acceleration on than off, in a rig without any issues, but that's just assumption on my part. If you turn off Use Graphics Processor on your systems, is the brush tool more or less responsive?
    But again, panning the canvas with the hand tool is now extremely responsive, without any screen tearing or visible lag, and that's a massive improvement over the total meltdown of performance I was suffering from before.
    Thanks again very much for your help. I'm grateful to all of you who took the time to chime in.

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