server taking long time to make graph

Hi I am making graph in PHP using JPGRAPH. I am not taking big data, my data is only 48 points. Through TOP command in linux, I found that httpd is taking lot of time to make the simple x-y graph. I found that the graph size is 47.75kb only. May pls suggest if any setting needs to be done in PHP / APACHE etc. to make it fast -- With Best Wishes Balwant Singh ======================== INDO ASIAN FUSEGEAR LTD. A-39, HOSIERY COMPLEX PHASE - II EXTN., NOIDA PH: +91 - 120 - 2568 472 / 093 -098 FAX: +91 - 120 - 2568 473 WEB : www.indoasian.com