log file sync

Hi,

On 11.2.0.4 on AIX, database is slow.

I ran AWR in which I have:

Then for me the problem might be log file sync (then redolog switching) or number of commits. Am I right?

For logs I ran:

Is 1354 minutes too much?

Size of redlogs are :

Should I create larger redo log file?

Otherwise what should I do for commits? How to find average number of commits?

Thanks.