Database management

Please indicate whether the following services are available:
1. On the disk there is a directory with files of the Oracle XE 10 database (installation files, database settings, data files, logs, i.e., files of the database). All necessary files) that were copied from another machine. There is also a set-up and running Oracle XE 10 instance. You need to raise a database under this instance that would contain data from saved files.
2. There is a working instance of Oracle SE 10. The speed of the DB operation must be optimized. Set up the allocation of RAM for the operation of the instance (SGA, PGA, etc.).
Thank you!