Dashboard of IAO fails for around 3000 rows of data

**Describe the bug in current situation**
Dashboard of IAO fails with around 2780 rows of data. The backend API fails with 504 response code.

**Link bug to the User Story**

**Impact of this bug**
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**Chance of Occurring (high/medium/low/very low)**

**Pre Conditions: which Env, any pre-requesites or assumptions to execute steps?**

**Steps to Reproduce**
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1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

**Actual/ observed behaviour/ results**

**Expected behaviour**
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**Screenshots/ Visual Reference/ Source**
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