so how we can resolve this issue? is this the reason why it takes time for us to access phpMyAdmin?
No, that just means the version number of the PHP MySQL library is different to MySQL's version number. Upgrading/downgrading isn't needed because it usually won't cause problems (though I am wondering why they're running an outdated version of PHP MySQL, 5.2.5 is availabe ATM). There isn't anything really you can do to improve server response except for these three things:
1) make sure your DB scripts and remote SQL info are up-to-date (i.e. using mysql.x10hosting.com and %.x10hosting.com as hosts respectively);
2) optimizing your scripts, DBs and queries;
3) don't complain about server issues unless staff hasn't posted anything in 24 hours.
And while staff are aware of phpMyAdmin's lagginess, I should note that of course a server will be slow if it has to handle near-DoS-like amounts of queries and page requests!