Sorry for the inconvenience. Please try the steps below:
1. Clear Google Services Framework Cache
Go to "Settings" > "Application Manager" > "Select All" > "Google play Services" > ""Storage" > "Clear cache" > "Clear all data"
2. Check Available Storage
Go to "Settings" > "Device maintenance / Device care" > "Storage" to see how much free space you have.
If you are still having trouble, please go to the Message tab and click on the Settings icon. Then click on Help center, submit a request with the answers to the following questions and press send.
In which situation is the app slow? While swiping to meet another user? or using other features on the app?