To update, go to Samsung Internet and search "One UI Home Launcher Galaxy Store." Press on the galaxy store link of One UI Home Laucher, and there will be an update available. Install the update. Everything will be smoother after the update.
Kindly try to clear cache the phone by following the steps:
Step 1. Launch the Settings app, and then select Battery and device care.
Step 2. Tap Optimize now. Device care automatically optimizes your phone and clears the app's cache. The Device care's optimization feature improves device performance through the following actions.
1-Closes apps running in the background.
2-Manages abnormal battery usage.
3-Scans for crashed apps and malware.