WiFiClient setTimeout is documented to accept milliseconds (sane) but value is used as seconds directly (loss of resolution is not sane). Protoype expects u32 instead of f32/f64.

Documentation (inheritance) on value being milliseconds, not seconds
https://www.arduino.cc/reference/en/language/functions/communication/stream/streamsettimeout/

/path/to/sketch.ino: In function 'void loop()':
sketch:614:31: error: invalid conversion from 'const char*' to 'uint32_t {aka unsigned int}' [-fpermissive]
connection.setTimeout("asd");
^
In file included from /path/to/arduino/.arduino15/packages/esp32/hardware/esp32/1.0.4/libraries/WiFi/src/WiFi.h:37:0,
from /path/to/sketch.ino:5:
/path/to/arduino/.arduino15/packages/esp32/hardware/esp32/1.0.4/libraries/WiFi/src/WiFiClient.h:91:9: note: initializing argument 1 of 'virtual int WiFiClient::setTimeout(uint32_t)'
int setTimeout(uint32_t seconds);

On Linux dell 4.19.0-6-amd64 #1 SMP Debian 4.19.67-2+deb10u2 (2019-11-11) x86_64 GNU/Linux
Arduino is 1.8.11 Hourly Build 2020/02/05 07:25

Reproduction:
u32 t;
u8 buf[1024];
WiFiClient connection;
connection.connect(server, port);
connection.setTimeout(2);
t=millis();
Serial.print(t);
connection.readBytes(buf, 1024);
//Send say a single character from your server
Serial.print(millis()-t);