CPU spikes on bundle product item editing with Bundled Mojo extension

[cejstore]

Please help me as I have serious problem that the site will be down due to the high CPU usage at bundle product area with extension Bundled Mojo extension. The CPU spikes and I receive 503 Temporary Server Error. I contacted developer several times, but he never replies! So I'm here to receive help from you all.
I worked on below tasks hoping to resolve the issue, but to no avail:
-Optimize database,
-Installed Full Page Cache extension
-Enabled Super Cacher on Siteground
-Installed Magento version 1.9.3.1
-UpgradedPHP 5.6
-Increase memory limit to 5000M in PHP config
-Upgraded to MySQL 5.6
but still having over 140 CPUs when loading bundle item. Please refer to the attached screenshots


The item associated with this problem is ones that has many bundle items. When I click on Bundle item from side menu, the loader initiates. Longer the loading time the higher the CPU usage. 

To recreate issue:

1. Catalog > Manage products > click on bundle product

2. Click Bundle items from side menu.

3. While it is loading, please simultaneously monitor the CPU usage. The CPU will spike tremendously.

In live site there is a product with 65 items and goes up to 150 CPUs and make the whole server down.

I have monitored the most resource consuming processes and once I clicked on Bundle Items there were are lot of PHP processes spawned which consume a lot of CPU resources. This seems to be related to the way the application code logic.

Is there any way or extension that will reduce and optimize such problem? 

Thanks.

[magicalprod]

I just searched for the same problem and found your post at the top. We are also having the same issue. I watched the mysql processes and there is a query that puts data in a temp table for the bundles and that is what is hanging up the system. I haven't dug in further, hence the searching, but it seems like this is a new issue or at least is now an issue that wasn't there before we started using bundles. The table was definitely related to bundles, one of the catalog_product tables, likely something like catalog_product_index_price_bundle_tmp or so. Would like to know if there is some index issue or other fix to keep this from happening. I have to keep restarting mysql to clear up the locked query so we can work on the system. I have not seen this before in many installs but this is one of the first times bundles have been used heavily. And by that I mean a few hundred total inventory items and maybe 70 bundles.