Version 2013a very slow importing data

I've just upgraded from 2012 to 2013a. I use 'importdata' to read in data from a lab experiment - typically 150 files, each with 20000 records.

In version 2012 the import took about 12 seconds. Version 2013a running identical code on same machine is taking 51 seconds. These results are repeatable within a second or two.

Anyone know why the latest Matlab is sunning so slow, and any ideas how to speed it up?

[Sean de Wolski]

Same machine/both local installs?

[David]

I'm having the same problem. I regularly read in data from a large .txt file, and I haven't timed it, but I would guess that the time it takes to read in my data has increased from 2012b to 2013a by a factor comparable to yours (~4). This is quite frustrating as it now takes a VERY long time to import the amount of data that I am dealing with. And Sean, my MATLAB is on the same machine and both were local installs.

[Sean de Wolski]

Colin and David, please contact technical support with an example that reproduces it.

[Hande]

I'm also having trouble reading files. I agree with David, reading the same file takes almost 4-5 times longer in Matlab 2013 than Matlab 2012. For relatively smaller files I used to drag and drop to workspace and M2012 would instantly load it. Even dragging and dropping (which usually takes less time than importing) in M2013 is a hassle..

I experience slowness in startup as well. I read a few suggestions that included disabling some features during starup but they didn't improve the process appreciably.

[TuCa]

I am having the same problem. If you guys have figured out how to resolve this problem please let me know. It would be much appreciated.