Admin Timeout after loading products with EZ populate

[Midlandweb]

v 1.3.8
Site is hosted with digiweb on shared hosting (Windows)

Guys,
Getting the following error after using easy populate to update a zen cart site..
Fatal error: Maximum execution time of 60 seconds exceeded in D:\hshome\host\**website***.ie\shop\*****admin*****\includes\functions\general.p hp on line 221

The last few product categories I uploaded had multiple subcategories and was an update from a previous upload so it "linked" the new product list to the old i.e. multiple linked products. Since then I have been getting the aforementioned error and the site has slowed to a crawl/stop. Ideally now I would go and delete the last few stock sheets updated but because of the error I cant do this. Anyone have any ideas? Also is there a way of dealing with the multiple linked products that doesnt involve changing/deleting individual products? i.e. edit db?
All help greatly appreciated!

[Midlandweb]

Ok, I moved the site from a windows platform to a linux platform to see if it would make any difference and once I go over about 3500 line items the site slows to a stop. What should be the limit be for a zen install on shared hosting? Surely it should handle more than that? Any ideas??

[forestfrogsllc]

Did you ever find a resolution to this problem? I'm getting the same error message after using EP to upload products.