Slow performance is often caused by high CPU, memory pressure, disk space problems, application issues, or external network conditions.
Quick checks
uptime
free -h
df -h
top
Common causes
- High CPU load.
- Out of memory or swap use.
- Disk nearly full.
- Database queries taking too long.
- Too many web requests.
- Backups or updates running.
If you contact support, include screenshots or command output where possible.