Many false positives with a set of ~50 faces

**Describe the bug**
I have trained about 50 different faces with at least 4-5 images per face. When using the web interface to identify a person from an untrained image, I see high "similarity" numbers (> 98%) that are falsely identified as the wrong person.

I noticed [this page](https://github.com/exadel-inc/CompreFace/blob/master/docs/Face-Recognition-Similarity-Threshold.md) - is there a setting I can change to get better results and less false positives?

Thanks in advance!

**Expected behavior**
A much lower similarity number for these false positives.

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**Desktop (please complete the following information):**
- OS: [e.g. iOS]
- Browser [e.g. chrome, safari]
- Version [e.g. 22]

**Additional context**
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