vb.net - Speed up application performance with Access database -

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i have written vb.net application uses ms access 2010 database. database kept in network drive on server in us. application being used users in germany, china, italy, , india apart users.

for user performance of application excellent, other users other regions, performance not great. every database action takes @ least minute complete. please me improve situation.

expand access back-end ms sql/mysql back-end. that, need either host ms sql or mysql on dedicated ip/intranet address. ms access has inbuilt function upgrade back-end tables ms sql server use or recreate back-end in mysql.

other that, multiple users multiple remote locations + shared network drive drive crazy


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