Using Contact Field to link to contacts and group record with it, then everything become very very slow.

[Sunny]

I was using Mementodatabase as a customer visiting record.

I use Contact Field to link the contacts on the phone, and group all the records with that Contact Field, so I can check visiting time of each customer. 

but after I done this, everything become quite slow (I just have 50 records), whatever I open record, or save a record back to list, it very very slow, like I have to wait 15 secs for UI active from freezing.

after ungroup from this Contact Field, it become smooth again.

Not sure if there are any ways to avoid freezing when I group with Contact Field? Thank you.

[Satish Mehta]

I hope the issue has been sorted by now.Can you inform how the issue was resolved ?

I am also started linking my records with contacts and I might have around 30 records by now. I am not facing any issue of speed at this stage. I will be having hundreds of links in future.

[Sunny]

don't group directly by contacts field, use another js field to get the contacts, and group by this js field.

hope that's helps.