budyypress performance

hello i'm having issue in my hosting about the database consuming and my website have been blocked twice. i have removed some plugin and ask for another check for the hosting and that is the reply.

Unfortunately, when I removed the restriction, a lot of processes were spawned (see below).

Running Proceses:

---Pass 1---
aaelch 9051 22.0 0.4 299356 37480 ? RN 04:12 0:00 | \_ /usr/bin/php /home/aaelch/public_html/index.php
aaelch 9051 42.0 0.7 323040 61540 ? RN 04:12 0:00 | \_ /usr/bin/php /home/aaelch/public_html/index.php
aaelch 9051 64.0 1.1 360460 97920 ? RN 04:12 0:00 | \_ /usr/bin/php /home/aaelch/public_html/index.php

---Pass 2---
aaelch 9127 20.0 0.4 296460 34692 ? RN 04:12 0:00 | \_ /usr/bin/php /home/aaelch/public_html/index.php
aaelch 9118 20.5 0.7 322768 61128 ? RN 04:12 0:00 | \_ /usr/bin/php /home/aaelch/public_html/index.php
aaelch 9127 31.0 0.5 310124 48444 ? RN 04:12 0:00 | \_ /usr/bin/php /home/aaelch/public_html/index.php
aaelch 9118 26.0 0.9 337164 75080 ? RN 04:12 0:00 | \_ /usr/bin/php /home/aaelch/public_html/index.php
aaelch 9127 41.0 0.7 322212 60608 ? RN 04:12 0:00 | \_ /usr/bin/php /home/aaelch/public_html/index.php
aaelch 9118 31.0 1.1 355340 93220 ? RN 04:12 0:00 | \_ /usr/bin/php /home/aaelch/public_html/index.php
aaelch 9127 51.0 0.9 336396 74548 ? RN 04:12 0:00 | \_ /usr/bin/php /home/aaelch/public_html/index.php
aaelch 9118 35.5 1.3 368908 106684 ? RN 04:12 0:00 | \_ /usr/bin/php /home/aaelch/public_html/index.php

---Pass 3---
aaelch 9127 42.0 1.9 426508 163616 ? RN 04:12 0:01 | \_ /usr/bin/php /home/aaelch/public_html/index.php
aaelch 9118 36.7 1.9 426508 163880 ? RN 04:12 0:01 | \_ /usr/bin/php /home/aaelch/public_html/index.php
aaelch 9127 33.5 1.9 426508 163876 ? RN 04:12 0:01 | \_ /usr/bin/php /home/aaelch/public_html/index.php
aaelch 9118 31.0 1.9 426508 163880 ? RN 04:12 0:01 | \_ /usr/bin/php /home/aaelch/public_html/index.php
aaelch 9127 34.7 1.9 426508 163876 ? SN 04:12 0:01 | \_ /usr/bin/php /home/aaelch/public_html/index.php
aaelch 9118 32.0 1.9 420108 157724 ? RN 04:12 0:01 | \_ /usr/bin/php /home/aaelch/public_html/index.php
aaelch 9127 37.0 1.9 426508 163876 ? RN 04:12 0:01 | \_ /usr/bin/php /home/aaelch/public_html/index.php
aaelch 9118 33.0 1.8 417284 155284 ? RN 04:12 0:01 | \_ /usr/bin/php /home/aaelch/public_html/index.php

---Pass 4---

MySQL Processes:

Incoming Connections:
74.202.255.243 aaelch.org /downloads/2012/02/gadiel_dell_arricia.jpg
74.202.255.243 aaelch.org /photos/
93.66.0.27 aaelch.org /wp-content/plugins/bp-album/includes/css/general.css?ver=3
93.66.0.27 aaelch.org /wp-content/plugins/buddypress-easy-albums-photos-video-and
93.66.0.27 aaelch.org /wp-content/plugins/contact-form-7/jquery.form.js?ver=3.08
93.66.0.27 aaelch.org /wp-content/plugins/contact-form-7/scripts.js?ver=3.1.2
93.66.0.27 aaelch.org /wp-content/themes/bp-corporate/_inc/global.js?ver=20120110
93.66.0.27 aaelch.org /wp-content/themes/bp-corporate/_inc/images/social-single.p

can you please help to understand what it's means ?

i also have the recomandation to test the site with http://gtmetrix.com
i have these suggestions for example:
The following cacheable resources have a short freshness lifetime. Specify an expiration at least one week in the future for the following resources:

http://daddyconcept.com/chateau/wp-content/uploads/2010/06/copainsdavant.gif (expiration not specified)
http://daddyconcept.com/chateau/wp-content/uploads/2010/06/france-roma-300x45.jpg (expiration not specified)
http://daddyconcept.com/chateau/wp-content/uploads/2010/06/mail_plain.png (expiration not specified)
http://daddyconcept.com/chateau/wp-content/uploads/2010/06/social_facebook.png (expiration not specified)
http://daddyconcept.com/chateau/wp-content/uploads/2010/06/social_skype.png (expiration not specified)
http://daddyconcept.com/chateau/wp-content/uploads/2010/06/trombi.gif (expiration not specified)
http://www.aaelch.org/wp-content/plugins/buddypress/bp-core/images/mystery-man.jpg (expiration not specified)
http://www.aaelch.org/wp-content/themes/bp-corporate/_inc/images/admin-menu-arrow.gif (expiration not specified)
http://www.aaelch.org/wp-content/themes/bp-corporate/_inc/images/nav-arrow.png (expiration not specified)
http://www.aaelch.org/wp-content/themes/bp-corporate/_inc/images/spacer.gif (expiration not specified)
http://www.aaelch.org/wp-content/themes/bp-corporate/_inc/images/submit-term.jpg (expiration not specified)
http://www.aaelch.org/wp-content/themes/bp-corporate/_inc/preset-styles/corporate-orange.css (expiration not specified)
http://www.aaelch.org/wp-content/themes/bp-corporate/_inc/preset-styles/corporate-orange/side.png (expiration not specified)
http://www.aaelch.org/wp-content/themes/bp-corporate/style.css (expiration not specified)
http://www.aaelch.org/wp-content/uploads/2012/01/cropped-header1.jpg (expiration not specified)
how can i correct these "errors"?