diff --git a/native/nt/dynamic_loader_test.cpp b/native/nt/dynamic_loader_test.cpp
index f6a6700..b1101ba 100644
--- a/native/nt/dynamic_loader_test.cpp
+++ b/native/nt/dynamic_loader_test.cpp
@@ -50,7 +50,9 @@ int main(int argc, char **argv)
 				}
 				return bytes;
 			};
-			const auto result = raven::run_native_process(modules, entry, argv[1], std::chrono::milliseconds(500), source);
+			// Process startup alone can take most of a second on a loaded host: only the looping DLLs need a short limit.
+			const auto timeout = std::chrono::milliseconds(selected.ends_with("loop") ? 2000 : 10000);
+			const auto result = raven::run_native_process(modules, entry, argv[1], timeout, source);
 			const auto address = modules.resolve({"client.exe", "entered", 0, false, 0}) - entry.loaded.base();
 			check(address < entry.loaded.data().size(), "fixture state is outside image");
 			const auto entered = entry.loaded.data()[static_cast<size_t>(address)];
diff --git a/native/nt/loader_test.cpp b/native/nt/loader_test.cpp
index 6ec2e9b..1f6c1d3 100644
--- a/native/nt/loader_test.cpp
+++ b/native/nt/loader_test.cpp
@@ -163,7 +163,8 @@ int main(int argc, char **argv)
 				const auto address = modules.resolve({"client.exe", "exit_requested", 0, false, 0});
 				entry->loaded.data()[address - entry->loaded.base()] = 1;
 			}
-			const auto timeout = std::chrono::milliseconds(extra == "loop.dll" ? 300 : 10000);
+			// The looping DLL must still be reached after base.dll and dependent.dll attach, which can take most of a second on a loaded host.
+			const auto timeout = std::chrono::milliseconds(extra == "loop.dll" ? 2000 : 10000);
 			if (extra == "reject.dll") {
 				bool rejected = false;
 				try { raven::run_native_process(modules, *entry, argv[1], timeout); }