If you're getting enough diesel to have good power off the line with WOT, then no, the strainer in the tank probably isn't the issue. If it was, you'd be choking then too.

If you have the vacuum operated wastegate you likely don't have the overboost protection circuit. The earlier cars with the mechanical wastegate had a sensor in the intake plenum and a switchover valve on the firewall which killed the ALDA signal to prevent the turbo from spooling if the wastegate stuck closed.

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Current stable:
1995 E320 157K (Nancy)
1983 500SL 125K (SLoL)

Gone but not forgotten:
1986 300SDL (RIP)
1991 350SD
1991 560SEL
1990 560SEL
1986 500SEL Euro (Rusted to nothing at 47K!)

Gone and wanting to forget:
1985 524TD 167K (TotalDumpster™) [Definitely NOT a Benz]